httpClient 使用multipart/form-data 类型上传文件及表单

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终于找到一个可以用的

public static void post() throws ClientProtocolException, IOException {
//          Proxy p=new Proxy();
//  p.setHost("192.168.1.153");
//  p.setPort("8888");

        HttpClient httpclient = new DefaultHttpClient();

//        HttpHost proxy = new HttpHost(p.getHost(), Integer.valueOf(p.getPort()), "http");
//        httpclient.getParams().setParameter(ConnRouteParams.DEFAULT_PROXY, proxy);
        //请求路径
        HttpPost post = new HttpPost("xxxxx");
//添加header头信息
        post.setHeader("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;)");
//注这里一定不能添加 content-Type:multipart/form-data 属性因为这里面有个boundary参数属性是不可控的。这个值是由浏览器生成的。如果强行指明和可能
//导致边界值不一致就会请求失败详细参见 http://blog.csdn.net/xiaojianpitt/article/details/6856536

//      post.setHeader("content-Type", "multipart/form-data");
        post.setHeader("Host", "****");
        post.setHeader("Accept-Encoding","gzip");
        post.setHeader("charset", "utf-8");
        FileBody fileBody = new FileBody(new File("xxxx"),"image/pjpeg","utf-8");
        MultipartEntity entity = new MultipartEntity();
//添加消息体信息
        entity.addPart("xxxx", new StringBody("xxx",Charset.forName("utf-8")));
        entity.addPart("imagefile", fileBody);
        post.setEntity(entity);
        HttpResponse response = httpclient.execute(post);
        if(HttpStatus.SC_OK==response.getStatusLine().getStatusCode()){

            HttpEntity entitys = response.getEntity();
            if (entity != null) {
                System.out.println(EntityUtils.toString(entitys));
            }
        }
        httpclient.getConnectionManager().shutdown();
    }

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