Android HttpClient上传文件  的一个封装方法。里面有一小段代码是处理获取JSON格式数据

System.out.println("executing request " + httppost.getRequestLine());  返回协议和返回码

正确的话是 http 1.1 200

System.out.println(EntityUtils.toString(resEntity,"utf-8"));

获取处理后的页面内容

android并不自带MultipartEntity吧？

对的。把httpmime-4.1.1.jar 这个放进lib中就可以使用 MultipartEntity了

下载地址：http://pan.baidu.com/share/link?shareid=90009&uk=4012369003

public String post(String pathToOurFile,String urlServer) throws ClientProtocolException, IOException, JSONException {

HttpClient httpclient = new DefaultHttpClient();

//设置通信协议版本

httpclient.getParams().setParameter(CoreProtocolPNames.PROTOCOL_VERSION, HttpVersion.HTTP_1_1);

//File path= Environment.getExternalStorageDirectory(); //取得SD卡的路径

//String pathToOurFile = path.getPath()+File.separator+"ak.txt"; //uploadfile

//String urlServer = "http://192.168.1.88/test/upload.php";

HttpPost httppost = new HttpPost(urlServer);

File file = new File(pathToOurFile);

MultipartEntity mpEntity = new MultipartEntity(); //文件传输

ContentBody cbFile = new FileBody(file);

mpEntity.addPart("userfile", cbFile); // 对应的

httppost.setEntity(mpEntity);

System.out.println("executing request " + httppost.getRequestLine());

HttpResponse response = httpclient.execute(httppost);

HttpEntity resEntity = response.getEntity();

System.out.println(response.getStatusLine());//通信Ok

String json="";

String path="";

if (resEntity != null) {

//System.out.println(EntityUtils.toString(resEntity,"utf-8"));

json=EntityUtils.toString(resEntity,"utf-8");

JSONObject p=null;

try{

p=new JSONObject(json);

path=(String) p.get("path");

}catch(Exception e){

e.printStackTrace();

}

}

if (resEntity != null) {

resEntity.consumeContent();

}

httpclient.getConnectionManager().shutdown();

return path;

}