通过java调用servlet接口----json



package myProject;

 

import java.io.DataInputStream;

import java.io.DataOutputStream;

import java.io.InputStream;

import java.io.OutputStream;

import java.net.HttpURLConnection;

import java.net.URL;

 

import org.json.JSONException;

import org.json.JSONObject;

 

public class TestServlet {

    /**

     * @param args

     */

    privatestatic String URL = "http://localhsot:8080/plugins/yundada/getinfotypelist";

 

    publicstatic void main(String[] args) throws JSONException {

 

        // Post Data 为Form提交的内容。

        JSONObject obj =new JSONObject();

        obj.put("authtoken","2548c2f2-7680-430c-a0b1-9fba835acb84");

        String postData = obj.toString();

        String html = GetResponseDataByID(URL, postData);

        JSONObject var =new JSONObject(html);

        System.out.println(var.toString());

    }

 

    publicstatic void PrintStrs(String[] str) {

        for(String s : str) {

            System.out.print(s +",");

        }

        System.out.println();

    }

 

    publicstatic String GetResponseDataByID(String url, String postData) {

        String data =null;

        try{

            URL dataUrl =new URL(url);

            HttpURLConnection con = (HttpURLConnection) dataUrl

                    .openConnection();

            con.setRequestMethod("POST");

            con.setRequestProperty("Proxy-Connection","Keep-Alive");

            con.setDoOutput(true);

            con.setDoInput(true);

 

            OutputStream os = con.getOutputStream();

            DataOutputStream dos =new DataOutputStream(os);

            dos.write(postData.getBytes());

            dos.flush();

            dos.close();

 

            InputStream is = con.getInputStream();

            DataInputStream dis =new DataInputStream(is);

            byted[] = new byte[dis.available()];

            dis.read(d);

            data =new String(d);

            con.disconnect();

        }catch (Exception ex) {

            ex.printStackTrace();

        }

        returndata;

    }

}