首先创建一个工具类，定义好接口，这里的参数
1：fileList：多个文件的path+name
2： zipFileName：压缩后的文件名

下面是代码，注释已经很详细了

public class ZIPUtil {          public static String createZipFile(ArrayList<String> fileList, String zipFileName) {          if(fileList == null || fileList.size() == 0 || CommonUtil.isEmpty(zipFileName)){             return null;         }                  //构建压缩文件File         File zipFile = new File(zipFileName);         //初期化ZIP流         ZipOutputStream out = null;          try{             //构建ZIP流对象             out = new ZipOutputStream(new FileOutputStream(zipFile));             //循环处理传过来的集合             for(int i = 0; i < fileList.size(); i++){                 //获取目标文件                 File inFile = new File(fileList.get(i));                 if(inFile.exists()){                      //定义ZipEntry对象                      ZipEntry entry = new ZipEntry(inFile.getName());                      //赋予ZIP流对象属性                      out.putNextEntry(entry);                      int len = 0 ;                      //缓冲                      byte[] buffer = new byte[1024];                      //构建FileInputstream流对象                      FileInputStream fis;                      fis = new FileInputStream(inFile);                      while ((len = fis.read(buffer)) > 0) {                          out.write(buffer, 0, len);                          out.flush();                      }                      //关闭closeEntry                      out.closeEntry();                      //关闭FileInputStream                      fis.close();                 }             }         }catch (IOException e) {             e.printStackTrace();         }finally{              try {                  //最后关闭ZIP流                  out.close();              } catch (IOException e) {                  e.printStackTrace();              }         }           return zipFileName;      } }