修改下发班组任务信息
This commit is contained in:
parent
a7e1bb7e86
commit
1e629bbc63
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@ -267,7 +267,7 @@ public class UrkMinioService {
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public List<UploadFileVo> getFileBast64List(String id, String sourceId, String sourceTable, String sourceType) throws Exception {
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List<UploadFileVo> list=mapper.getFileList(id,sourceId,sourceType,sourceTable);
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for (UploadFileVo vo:list){
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String bast64=minioUtils.getMinioBast64(vo.getBucketName(),vo.getFilePath());
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String bast64=minioUtils.getMinioFileCompress(vo.getBucketName(),vo.getFilePath());
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vo.setBast64(bast64);
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}
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return list;
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@ -2,6 +2,7 @@ package com.bonus.urk.minio;
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import com.bonus.system.api.domain.SysFile;
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import com.bonus.urk.vo.ImageResizer;
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import io.minio.*;
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import io.minio.errors.MinioException;
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import io.minio.http.Method;
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@ -303,7 +304,6 @@ public class UrkMinioUtil {
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while ((bytesRead = inputStream.read(buffer)) != -1) {
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outputStream.write(buffer, 0, bytesRead);
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}
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byte[] bytes = outputStream.toByteArray();
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String bast64= Base64.getEncoder().encodeToString(bytes);
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inputStream.close();
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@ -311,6 +311,24 @@ public class UrkMinioUtil {
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return bast64;
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}
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@SneakyThrows(Exception.class)
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public String getMinioFileCompress(String bucketName,String path) {
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InputStream inputStream= minioClient.getObject(GetObjectArgs.builder().bucket(bucketName).object(path).build());
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ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
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byte[] buffer = new byte[1024];
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int bytesRead;
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while ((bytesRead = inputStream.read(buffer)) != -1) {
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outputStream.write(buffer, 0, bytesRead);
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}
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byte[] bytes = outputStream.toByteArray();
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//
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String bast64=ImageResizer.transImageByJpg(bytes);
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inputStream.close();
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outputStream.close();
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return bast64;
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}
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/**
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* 删除文件
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*
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@ -0,0 +1,60 @@
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package com.bonus.urk.vo;
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/**
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* ID生成器工具类
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*
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* @author czc
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*/
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public class IdUtils
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{
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/**
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* 获取随机UUID
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*
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* @return 随机UUID
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*/
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public static String randomuuid()
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{
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return UUID.randomuuid().toString();
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}
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/**
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* 简化的UUID，去掉了横线
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*
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* @return 简化的UUID，去掉了横线
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*/
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public static String simpleuuid()
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{
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return UUID.randomuuid().toString(true);
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}
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/**
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* 简化的UUID，去掉了横线
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*
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* @return 简化的UUID，去掉了横线
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*/
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public static String getuid()
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{
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return UUID.randomuuid().toString(true).toUpperCase();
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}
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/**
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* 获取随机UUID，使用性能更好的ThreadLocalRandom生成UUID
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*
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* @return 随机UUID
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*/
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public static String fastuuid()
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{
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return UUID.fastuuid().toString();
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}
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/**
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* 简化的UUID，去掉了横线，使用性能更好的ThreadLocalRandom生成UUID
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*
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* @return 简化的UUID，去掉了横线
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*/
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public static String fastsimpleuuid()
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{
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return UUID.fastuuid().toString(true);
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}
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}
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@ -0,0 +1,160 @@
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package com.bonus.urk.vo;
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import lombok.extern.slf4j.Slf4j;
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import javax.imageio.ImageIO;
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import java.awt.*;
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import java.awt.image.BufferedImage;
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import java.io.File;
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import java.io.FileOutputStream;
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import java.io.IOException;
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import java.nio.file.*;
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import java.nio.file.attribute.BasicFileAttributes;
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import java.util.ArrayList;
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import java.util.Base64;
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import java.util.List;
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@Slf4j
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public class ImageResizer {
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public static List<String> fileType = new ArrayList<>();
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/**
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* 获取文件->最终转成 本地临时文件、使用完必须删除
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* @param
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* @return
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*/
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public static String transImageByJpg(byte[] bytes){
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try{
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String suffix=".jpg";
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long timestamp1 = System.currentTimeMillis();
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String filePath=getZipPath()+timestamp1;
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createDirectories(filePath);
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String roundId=IdUtils.randomuuid();
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String path="/temp/";
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File folder = new File(filePath+path);
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if (folder.exists() && folder.isDirectory()) {
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System.out.println("文件夹存在");
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} else {
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folder.mkdir();
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System.out.println("文件夹不存在");
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}
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// 创建临时文件，确保文件名具有唯一性
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File file = File.createTempFile(filePath+path+roundId, suffix);
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// 将字节数据写入文件
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FileOutputStream fos = new FileOutputStream(file);
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fos.write(bytes);
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fos.close();
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String newJpgPath=null;
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//不是jpg的先转成jpg的
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getFileType();
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if (!fileType.contains(suffix)){
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String roundId2=IdUtils.randomuuid();
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//jpg的路径
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newJpgPath=filePath+path+roundId2+".jpg";
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BufferedImage pngImage = ImageIO.read(file);
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BufferedImage jpgImage = new BufferedImage(pngImage.getWidth(), pngImage.getHeight(), BufferedImage.TYPE_INT_RGB);
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// 绘制PNG图片到jpgImage
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jpgImage.createGraphics().drawImage(pngImage, 0, 0, Color.WHITE, null);
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ImageIO.write(jpgImage, "jpg", new File(newJpgPath));
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}
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//
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File inputFile;
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//是jpg格式的
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if(newJpgPath==null){
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inputFile=file;
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}else{
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inputFile = new File(newJpgPath);
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}
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BufferedImage originalImage = ImageIO.read(inputFile);
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BufferedImage resizedImage = resizeImage(originalImage, 1080, 800);
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// 保存为PNG格式
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String roundId3=IdUtils.randomuuid();
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String lastPath=filePath+path+roundId3+".jpg";
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saveImage(resizedImage, "jpg", lastPath);
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if(newJpgPath!=null){
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boolean isde=new File(newJpgPath).delete();
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System.err.println("删除->"+isde);
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}
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boolean delete=file.delete();
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System.err.println("删除->"+delete);
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// 读取文件内容
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byte[] fileContent = Files.readAllBytes(Paths.get(lastPath));
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// 编码为Base64
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String base64Encoded = Base64.getEncoder().encodeToString(fileContent);
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deleteDirectoryContents(filePath);
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return base64Encoded;
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}catch (Exception e){
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log.error(e.toString(),e);
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}
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return null;
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}
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//文件
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public static boolean createDirectories(String path) {
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Path dir = Paths.get(path);
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try {
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return Files.createDirectories(dir).isAbsolute();
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} catch (IOException e) {
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log.error(e.getMessage(),e);
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}
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return false;
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}
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public static void deleteDirectoryContents(String path) {
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try {
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Path directory = Paths.get(path);
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Files.walkFileTree(directory, new SimpleFileVisitor<Path>() {
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@Override
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public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
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Files.delete(file);
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return FileVisitResult.CONTINUE;
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}
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@Override
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public FileVisitResult postVisitDirectory(Path dir, IOException exc) throws IOException {
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Files.delete(dir);
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return FileVisitResult.CONTINUE;
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}
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});
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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public static String getZipPath(){
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String osName = System.getProperty("os.name").toLowerCase();
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if (osName.contains("win")) {
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return "F:\\temp\\";
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} else if (osName.contains("nix") || osName.contains("nux") || osName.contains("aix")) {
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return "/data/local/tmp/";
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} else {
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return "/data/local/tmp/";
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}
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}
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public static BufferedImage resizeImage(BufferedImage originalImage, int targetWidth, int targetHeight) {
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BufferedImage resizedImage = new BufferedImage(targetWidth, targetHeight, originalImage.getType());
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Graphics2D graphics2D = resizedImage.createGraphics();
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graphics2D.drawImage(originalImage, 0, 0, targetWidth, targetHeight, null);
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graphics2D.dispose();
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return resizedImage;
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}
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public static void saveImage(BufferedImage resizedImage, String format, String outputPath) throws IOException {
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File outputFile = new File(outputPath);
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ImageIO.write(resizedImage, format, outputFile);
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}
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public static void getFileType(){
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fileType.add("jpg");
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fileType.add("JPG");
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fileType.add(".JPG");
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fileType.add(".jpg");
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}
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}
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@ -0,0 +1,490 @@
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package com.bonus.urk.vo;
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import com.sun.xml.internal.ws.util.UtilException;
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import java.security.MessageDigest;
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import java.security.NoSuchAlgorithmException;
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import java.security.SecureRandom;
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import java.util.Random;
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import java.util.concurrent.ThreadLocalRandom;
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/**
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* 提供通用唯一识别码（universally unique identifier）（UUID）实现
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*
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* @author czc
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*/
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public final class UUID implements java.io.Serializable, Comparable<UUID>
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{
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private static final long serialVersionUID = -1185015143654744140L;
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/**
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* SecureRandom 的单例
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*
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*/
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private static class Holder
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{
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static final SecureRandom NUMBER_GENERATOR= getSecureRandom();
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}
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/** 此UUID的最高64有效位 */
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private final long mostSigBits;
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/** 此UUID的最低64有效位 */
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private final long leastSigBits;
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/**
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* 私有构造
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*
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* @param data 数据
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*/
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private UUID(byte[] data)
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{
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long msb = 0;
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long lsb = 0;
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int max=8;
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int max1=16;
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assert data.length == 16 : "data must be 16 bytes in length";
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for (int i = 0; i < max; i++)
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{
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msb = (msb << max) | (data[i] & 0xff);
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}
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for (int i = max; i < max1; i++)
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{
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lsb = (lsb << max) | (data[i] & 0xff);
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}
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this.mostSigBits = msb;
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this.leastSigBits = lsb;
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}
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/**
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* 使用指定的数据构造新的 UUID。
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*
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* @param mostSigBits 用于 {@code UUID} 的最高有效 64 位
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* @param leastSigBits 用于 {@code UUID} 的最低有效 64 位
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*/
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public UUID(long mostSigBits, long leastSigBits)
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{
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this.mostSigBits = mostSigBits;
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this.leastSigBits = leastSigBits;
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}
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/**
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* 获取类型 4（伪随机生成的）UUID 的静态工厂。 使用加密的本地线程伪随机数生成器生成该 UUID。
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*
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* @return 随机生成的 {@code UUID}
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*/
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public static UUID fastuuid()
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{
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return randomuuid(false);
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}
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/**
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* 获取类型 4（伪随机生成的）UUID 的静态工厂。 使用加密的强伪随机数生成器生成该 UUID。
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*
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* @return 随机生成的 {@code UUID}
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*/
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public static UUID randomuuid()
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{
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return randomuuid(true);
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}
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/**
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* 获取类型 4（伪随机生成的）UUID 的静态工厂。 使用加密的强伪随机数生成器生成该 UUID。
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*
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* @param isSecure 是否使用{@link SecureRandom}如果是可以获得更安全的随机码，否则可以得到更好的性能
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* @return 随机生成的 {@code UUID}
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*/
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public static UUID randomuuid(boolean isSecure)
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{
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final Random ng = isSecure ? Holder.NUMBER_GENERATOR : getRandom();
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byte[] randomBytes = new byte[16];
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ng.nextBytes(randomBytes);
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randomBytes[6] &= 0x0f;
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randomBytes[6] |= 0x40;
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randomBytes[8] &= 0x3f;
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randomBytes[8] |= 0x80;
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return new UUID(randomBytes);
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}
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/**
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* 根据指定的字节数组获取类型 3（基于名称的）UUID 的静态工厂。
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*
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* @param name 用于构造 UUID 的字节数组。
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*
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* @return 根据指定数组生成的 {@code UUID}
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*/
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public static UUID nameuuidfrombytes(byte[] name)
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{
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MessageDigest md;
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try
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{
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md = MessageDigest.getInstance("MD5");
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}
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catch (NoSuchAlgorithmException nsae)
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{
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throw new InternalError("MD5 not supported");
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}
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byte[] md5Bytes = md.digest(name);
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md5Bytes[6] &= 0x0f;
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md5Bytes[6] |= 0x30;
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md5Bytes[8] &= 0x3f;
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md5Bytes[8] |= 0x80;
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return new UUID(md5Bytes);
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}
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/**
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* 根据 {@link #toString()} 方法中描述的字符串标准表示形式创建{@code UUID}。
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*
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* @param name 指定 {@code UUID} 字符串
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* @return 具有指定值的 {@code UUID}
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* @throws IllegalArgumentException 如果 name 与 {@link #toString} 中描述的字符串表示形式不符抛出此异常
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*
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*/
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public static UUID fromString(String name)
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{
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String[] components = name.split("-");
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int len5=5;
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if (components.length != len5)
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{
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throw new IllegalArgumentException("Invalid UUID string: " + name);
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}
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StringBuilder scrub=new StringBuilder("0x");
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for (int i = 0; i < len5; i++)
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{
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components[i] =scrub.append(components[i]).toString();
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}
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long mostSigBits = Long.decode(components[0]).longValue();
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mostSigBits <<= 16;
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mostSigBits |= Long.decode(components[1]).longValue();
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mostSigBits <<= 16;
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mostSigBits |= Long.decode(components[2]).longValue();
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long leastSigBits = Long.decode(components[3]).longValue();
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leastSigBits <<= 48;
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leastSigBits |= Long.decode(components[4]).longValue();
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return new UUID(mostSigBits, leastSigBits);
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}
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/**
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* 返回此 UUID 的 128 位值中的最低有效 64 位。
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*
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* @return 此 UUID 的 128 位值中的最低有效 64 位。
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*/
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public long getLeastSignificantBits()
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{
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return leastSigBits;
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}
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/**
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* 返回此 UUID 的 128 位值中的最高有效 64 位。
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*
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* @return 此 UUID 的 128 位值中最高有效 64 位。
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*/
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public long getMostSignificantBits()
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{
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return mostSigBits;
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}
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/**
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* 与此 {@code UUID} 相关联的版本号. 版本号描述此 {@code UUID} 是如何生成的。
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* <p>
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* 版本号具有以下含意:
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* <ul>
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* <li>1 基于时间的 UUID
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* <li>2 DCE 安全 UUID
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* <li>3 基于名称的 UUID
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* <li>4 随机生成的 UUID
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* </ul>
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*
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* @return 此 {@code UUID} 的版本号
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*/
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public int version()
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{
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// Version is bits masked by 0x000000000000F000 in MS long
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return (int) ((mostSigBits >> 12) & 0x0f);
|
||||
}
|
||||
|
||||
/**
|
||||
* 与此 {@code UUID} 相关联的变体号。变体号描述 {@code UUID} 的布局。
|
||||
* <p>
|
||||
* 变体号具有以下含意：
|
||||
* <ul>
|
||||
* <li>0 为 NCS 向后兼容保留
|
||||
* <li>2 <a href="http://www.ietf.org/rfc/rfc4122.txt">IETF RFC 4122</a>(Leach-Salz), 用于此类
|
||||
* <li>6 保留，微软向后兼容
|
||||
* <li>7 保留供以后定义使用
|
||||
* </ul>
|
||||
*
|
||||
* @return 此 {@code UUID} 相关联的变体号
|
||||
*/
|
||||
public int variant()
|
||||
{
|
||||
// This field is composed of a varying number of bits.
|
||||
// 0 - - Reserved for NCS backward compatibility
|
||||
// 1 0 - The IETF aka Leach-Salz variant (used by this class)
|
||||
// 1 1 0 Reserved, Microsoft backward compatibility
|
||||
// 1 1 1 Reserved for future definition.
|
||||
return (int) ((leastSigBits >>> (64 - (leastSigBits >>> 62))) & (leastSigBits >> 63));
|
||||
}
|
||||
|
||||
/**
|
||||
* 与此 UUID 相关联的时间戳值。
|
||||
*
|
||||
* <p>
|
||||
* 60 位的时间戳值根据此 {@code UUID} 的 time_low、time_mid 和 time_hi 字段构造。<br>
|
||||
* 所得到的时间戳以 100 毫微秒为单位，从 UTC（通用协调时间） 1582 年 10 月 15 日零时开始。
|
||||
*
|
||||
* <p>
|
||||
* 时间戳值仅在在基于时间的 UUID（其 version 类型为 1）中才有意义。<br>
|
||||
* 如果此 {@code UUID} 不是基于时间的 UUID，则此方法抛出 UnsupportedOperationException。
|
||||
*
|
||||
* @throws UnsupportedOperationException 如果此 {@code UUID} 不是 version 为 1 的 UUID。
|
||||
*/
|
||||
public long timestamp() throws UnsupportedOperationException
|
||||
{
|
||||
checkTimeBase();
|
||||
return (mostSigBits & 0x0FFFL) << 48
|
||||
| ((mostSigBits >> 16) & 0x0FFFFL) << 32
|
||||
| mostSigBits >>> 32;
|
||||
}
|
||||
|
||||
/**
|
||||
* 与此 UUID 相关联的时钟序列值。
|
||||
*
|
||||
* <p>
|
||||
* 14 位的时钟序列值根据此 UUID 的 clock_seq 字段构造。clock_seq 字段用于保证在基于时间的 UUID 中的时间唯一性。
|
||||
* <p>
|
||||
* {@code clockSequence} 值仅在基于时间的 UUID（其 version 类型为 1）中才有意义。 如果此 UUID 不是基于时间的 UUID，则此方法抛出
|
||||
* UnsupportedOperationException。
|
||||
*
|
||||
* @return 此 {@code UUID} 的时钟序列
|
||||
*
|
||||
* @throws UnsupportedOperationException 如果此 UUID 的 version 不为 1
|
||||
*/
|
||||
public int clockSequence() throws UnsupportedOperationException
|
||||
{
|
||||
checkTimeBase();
|
||||
return (int) ((leastSigBits & 0x3FFF000000000000L) >>> 48);
|
||||
}
|
||||
|
||||
/**
|
||||
* 与此 UUID 相关的节点值。
|
||||
*
|
||||
* <p>
|
||||
* 48 位的节点值根据此 UUID 的 node 字段构造。此字段旨在用于保存机器的 IEEE 802 地址，该地址用于生成此 UUID 以保证空间唯一性。
|
||||
* <p>
|
||||
* 节点值仅在基于时间的 UUID（其 version 类型为 1）中才有意义。<br>
|
||||
* 如果此 UUID 不是基于时间的 UUID，则此方法抛出 UnsupportedOperationException。
|
||||
*
|
||||
* @return 此 {@code UUID} 的节点值
|
||||
*
|
||||
* @throws UnsupportedOperationException 如果此 UUID 的 version 不为 1
|
||||
*/
|
||||
public long node() throws UnsupportedOperationException
|
||||
{
|
||||
checkTimeBase();
|
||||
return leastSigBits & 0x0000FFFFFFFFFFFFL;
|
||||
}
|
||||
|
||||
/**
|
||||
* 返回此{@code UUID} 的字符串表现形式。
|
||||
*
|
||||
* <p>
|
||||
* UUID 的字符串表示形式由此 BNF 描述：
|
||||
*
|
||||
* <pre>
|
||||
* {@code
|
||||
* UUID = <time_low>-<time_mid>-<time_high_and_version>-<variant_and_sequence>-<node>
|
||||
* time_low = 4*<hexOctet>
|
||||
* time_mid = 2*<hexOctet>
|
||||
* time_high_and_version = 2*<hexOctet>
|
||||
* variant_and_sequence = 2*<hexOctet>
|
||||
* node = 6*<hexOctet>
|
||||
* hexOctet = <hexDigit><hexDigit>
|
||||
* hexDigit = [0-9a-fA-F]
|
||||
* }
|
||||
* </pre>
|
||||
*
|
||||
* </blockquote>
|
||||
*
|
||||
* @return 此{@code UUID} 的字符串表现形式
|
||||
* @see #toString(boolean)
|
||||
*/
|
||||
@Override
|
||||
public String toString()
|
||||
{
|
||||
return toString(false);
|
||||
}
|
||||
|
||||
/**
|
||||
* 返回此{@code UUID} 的字符串表现形式。
|
||||
*
|
||||
* <p>
|
||||
* UUID 的字符串表示形式由此 BNF 描述：
|
||||
*
|
||||
* <pre>
|
||||
* {@code
|
||||
* UUID = <time_low>-<time_mid>-<time_high_and_version>-<variant_and_sequence>-<node>
|
||||
* time_low = 4*<hexOctet>
|
||||
* time_mid = 2*<hexOctet>
|
||||
* time_high_and_version = 2*<hexOctet>
|
||||
* variant_and_sequence = 2*<hexOctet>
|
||||
* node = 6*<hexOctet>
|
||||
* hexOctet = <hexDigit><hexDigit>
|
||||
* hexDigit = [0-9a-fA-F]
|
||||
* }
|
||||
* </pre>
|
||||
*
|
||||
* </blockquote>
|
||||
*
|
||||
* @param isSimple 是否简单模式，简单模式为不带'-'的UUID字符串
|
||||
* @return 此{@code UUID} 的字符串表现形式
|
||||
*/
|
||||
public String toString(boolean isSimple)
|
||||
{
|
||||
final StringBuilder builder = new StringBuilder(isSimple ? 32 : 36);
|
||||
// time_low
|
||||
builder.append(digits(mostSigBits >> 32, 8));
|
||||
if (false == isSimple)
|
||||
{
|
||||
builder.append('-');
|
||||
}
|
||||
// time_mid
|
||||
builder.append(digits(mostSigBits >> 16, 4));
|
||||
if (false == isSimple)
|
||||
{
|
||||
builder.append('-');
|
||||
}
|
||||
// time_high_and_version
|
||||
builder.append(digits(mostSigBits, 4));
|
||||
if (false == isSimple)
|
||||
{
|
||||
builder.append('-');
|
||||
}
|
||||
// variant_and_sequence
|
||||
builder.append(digits(leastSigBits >> 48, 4));
|
||||
if (false == isSimple)
|
||||
{
|
||||
builder.append('-');
|
||||
}
|
||||
// node
|
||||
builder.append(digits(leastSigBits, 12));
|
||||
|
||||
return builder.toString();
|
||||
}
|
||||
|
||||
/**
|
||||
* 返回此 UUID 的哈希码。
|
||||
*
|
||||
* @return UUID 的哈希码值。
|
||||
*/
|
||||
@Override
|
||||
public int hashCode()
|
||||
{
|
||||
long hilo = mostSigBits ^ leastSigBits;
|
||||
return ((int) (hilo >> 32)) ^ (int) hilo;
|
||||
}
|
||||
|
||||
/**
|
||||
* 将此对象与指定对象比较。
|
||||
* <p>
|
||||
* 当且仅当参数不为 {@code null}、而是一个 UUID 对象、具有与此 UUID 相同的 varriant、包含相同的值（每一位均相同）时，结果才为 {@code true}。
|
||||
*
|
||||
* @param obj 要与之比较的对象
|
||||
*
|
||||
* @return 如果对象相同，则返回 {@code true}；否则返回 {@code false}
|
||||
*/
|
||||
@Override
|
||||
public boolean equals(Object obj)
|
||||
{
|
||||
if ((null == obj) || (obj.getClass() != UUID.class))
|
||||
{
|
||||
return false;
|
||||
}
|
||||
UUID id = (UUID) obj;
|
||||
return (mostSigBits == id.mostSigBits && leastSigBits == id.leastSigBits);
|
||||
}
|
||||
|
||||
// Comparison Operations
|
||||
|
||||
/**
|
||||
* 将此 UUID 与指定的 UUID 比较。
|
||||
*
|
||||
* <p>
|
||||
* 如果两个 UUID 不同，且第一个 UUID 的最高有效字段大于第二个 UUID 的对应字段，则第一个 UUID 大于第二个 UUID。
|
||||
*
|
||||
* @param val 与此 UUID 比较的 UUID
|
||||
*
|
||||
* @return 在此 UUID 小于、等于或大于 val 时，分别返回 -1、0 或 1。
|
||||
*
|
||||
*/
|
||||
@Override
|
||||
public int compareTo(UUID val)
|
||||
{
|
||||
// The ordering is intentionally set up so that the UUIDs
|
||||
// can simply be numerically compared as two numbers
|
||||
return (this.mostSigBits < val.mostSigBits ? -1 :
|
||||
(this.mostSigBits > val.mostSigBits ? 1 :
|
||||
(this.leastSigBits < val.leastSigBits ? -1 :
|
||||
(this.leastSigBits > val.leastSigBits ? 1 :
|
||||
0))));
|
||||
}
|
||||
|
||||
// -------------------------------------------------------------------------------------------------------------------
|
||||
// Private method start
|
||||
/**
|
||||
* 返回指定数字对应的hex值
|
||||
*
|
||||
* @param val 值
|
||||
* @param digits 位
|
||||
* @return 值
|
||||
*/
|
||||
private static String digits(long val, int digits)
|
||||
{
|
||||
long hi = 1L << (digits * 4);
|
||||
return Long.toHexString(hi | (val & (hi - 1))).substring(1);
|
||||
}
|
||||
|
||||
/**
|
||||
* 检查是否为time-based版本UUID
|
||||
*/
|
||||
private void checkTimeBase()
|
||||
{
|
||||
if (version() != 1)
|
||||
{
|
||||
throw new UnsupportedOperationException("Not a time-based UUID");
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* 获取{@link SecureRandom}，类提供加密的强随机数生成器 (RNG)
|
||||
*
|
||||
* @return {@link SecureRandom}
|
||||
*/
|
||||
public static SecureRandom getSecureRandom()
|
||||
{
|
||||
try
|
||||
{
|
||||
return SecureRandom.getInstance("SHA1PRNG");
|
||||
}
|
||||
catch (NoSuchAlgorithmException e)
|
||||
{
|
||||
throw new UtilException(e);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* 获取随机数生成器对象<br>
|
||||
* ThreadLocalRandom是JDK 7之后提供并发产生随机数，能够解决多个线程发生的竞争争夺。
|
||||
*
|
||||
* @return {@link ThreadLocalRandom}
|
||||
*/
|
||||
public static ThreadLocalRandom getRandom()
|
||||
{
|
||||
return ThreadLocalRandom.current();
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue