前台打印 　　　　　　　String previewXML = showZipFile(filePath);            ServletOutputStream outputStream = response.getOutputStream();            response.reset();// 清空输出流            response.setHeader("Content-disposition", "attachment; filename=" + filePath.substring(filePath.lastIndexOf("\\")+1));// 设定输出文件头            response.setContentType("application/xml");// 定义输出类型            outputStream.write(previewXML.getBytes());            outputStream.flush();            outputStream.close();

拿到文件数据

public  String showZipFile(String filePath)  {             ZipFile zf;           StringBuffer sb = new StringBuffer();           String substring = filePath.substring(filePath.lastIndexOf("\\")+1);           filePath = filePath.substring(0,filePath.lastIndexOf("\\")+1);            try {            zf = new ZipFile(filePath);            FileInputStream in = new FileInputStream(filePath);            ZipInputStream zin = new ZipInputStream(in);              ZipEntry ze;             while ((ze = zin.getNextEntry()) != null) {                   if (ze.isDirectory()) {                 } else {                      String name = ze.getName();                                        if(name.equals(substring)) {                     long size = ze.getSize();                       if (size > 0) {                           BufferedReader br = new BufferedReader(                                   new InputStreamReader(zf.getInputStream(ze)));                           String line;                           while ((line = br.readLine()) != null) {                               sb.append(line);                         }                           br.close();                       }                      }                     continue;                 }               }               zin.closeEntry();               in.close();             zin.close();             return sb.toString();            } catch (IOException e) {            }             return null;         }