HttpClient访问第三方项目接口上传文件的实现方案,并解决中文乱码问题,并且在上传文件的时候传输多个其他参数;
第一种方案,中文参数在url内部,使用URLEncoder类对中文进行encode:
- public static void postTwo() throws Exception{
- HttpClient client = new HttpClient();
- //登录
- PostMethod post = new PostMethod("http://127.0.0.1:8080/HelloWorld/post?host=172.16.2.183&port=10086&name=test&pw=test" + URLEncoder.encode("北京", "utf-8"));
- FilePart fp = new FilePart("formFile", new File("D://PTOC_SCENIC_DAY_2015043015.txt"));
- Part[] parts = {fp};
- MultipartRequestEntity entity = new MultipartRequestEntity(parts, new HttpMethodParams());
- post.setRequestEntity(entity);
- client.executeMethod(post);
- //释放连接,以免超过服务器负荷
- System.out.println("============================");
- System.out.println(post.getResponseBodyAsString());
- System.out.println("============================");
- //释放连接,以免超过服务器负荷
- post.releaseConnection();
- }
- public static void postThree() throws Exception{
- HttpClient client = new HttpClient();
- //登录
- PostMethod post = new PostMethod("http://127.0.0.1:8080/HelloWorld/post");
- FilePart fp = new FilePart("formFile", "JNDI.txt", new File("D://JNDI配置数据库连接池_获取数据库连接.txt"));
- fp.setCharSet("utf-8");
- System.out.println(fp.getCharSet());
- Part[] parts = { fp, new StringPart("host", "172.16.2.183", "UTF-8"),
- new StringPart("port", "10086", "UTF-8"),
- new StringPart("name", "test色鬼", "UTF-8"),
- new StringPart("pw", "test特殊", "UTF-8") };
- MultipartRequestEntity entity = new MultipartRequestEntity(parts, new HttpMethodParams());
- post.setRequestEntity(entity);
- System.out.println(entity.getContentType());
- client.executeMethod(post);
- //释放连接,以免超过服务器负荷
- System.out.println("============================");
- System.out.println(post.getResponseBodyAsString());
- System.out.println("============================");
- //释放连接,以免超过服务器负荷
- post.releaseConnection();
- }
以上两种方案对应的第三方项目的接口代码如下:
- @RequestMapping(value = "/post", method = { RequestMethod.POST })
- public @ResponseBody Map<String, Object> post(@RequestParam(value = "host") String host,
- @RequestParam("port") String port,
- @RequestParam("name") String name,
- @RequestParam("pw") String pw,
- @RequestParam("formFile") MultipartFile formFile) {
- Map<String, Object> map = new HashMap<String, Object>();
- try{
- map.put("tag", "1");
- map.put("msg", "上传成功!");
- System.out.println(host + ":" + port + " " + name + " " + pw);
- String fileName = formFile.getOriginalFilename();
- FileOutputStream write = new FileOutputStream("D://ww" + fileName);
- InputStream read = formFile.getInputStream();
- byte data[] = new byte[1024];
- int count;
- while ((count = read.read(data, 0, 1024)) != -1) {
- write.write(data, 0, count);
- }
- read.close();
- write.close();
- }catch (Exception e) {
- e.printStackTrace();
- map.put("tag", "0");
- map.put("msg", "上传失败:" + e.getMessage());
- }
- return map;
- }
这两只方案都只能解决普通字符串参数的中文乱码问题,对于上传的文件其文件名中文乱码问题不能使用setCharSet方法设置编码方式解决,至于原因,查看源码就可以知道,StringPart和FilePart类中对中午的处理方式不一样,FilePart在转换文件名时,用的方法是EncodingUtil.getAsciiBytes(),查看这个方法源码为data.getBytes("US-ASCII"),因此中文文件名必定乱码,不管你是否调用了setCharSet("GBK")方法。 解决很简单:out.write(EncodingUtil.getBytes(filename, getCharSet()));想要解决附件文件名中文乱码只能靠修改源码了,FilePart中对中午乱码起至关重要的部分为:
- protected void sendDispositionHeader(OutputStream out) throws IOException {
- LOG.trace("enter sendDispositionHeader(OutputStream out)");
- super.sendDispositionHeader(out);
- String filename = this.source.getFileName();
- if (filename != null) {
- out.write(FILE_NAME_BYTES);
- out.write(QUOTE_BYTES);
- out.write(EncodingUtil.getAsciiBytes(filename));
- out.write(QUOTE_BYTES);
- }
- }