HttpUrlConnection用get和post请求发送参数

来源：互联网发布：tabu search算法编辑：程序博客网时间：2024/06/16 23:31

post请求:

    final String nameValue = username.getText().toString();    final String passValue = password.getText().toString();            new Thread(){                public void run() {                    try {                        URL url = new URL(login_url);                        HttpURLConnection urlConn = (HttpURLConnection) url.openConnection();                        urlConn.setConnectTimeout(5*1000);//设置连接时间为5秒                        urlConn.setReadTimeout(5*1000);//设置读取时间为5秒                        urlConn.setRequestMethod("POST");//设置请求方式为post                        urlConn.setDoOutput(true);                        urlConn.setDoInput(true);                        //添加参数                        OutputStream outputStream = urlConn.getOutputStream();                        String data = "username="+nameValue+"&password="+passValue;//拼装参数                        outputStream.write(data.getBytes());//上传参数                        int code = urlConn.getResponseCode();                        if(code == 200){//相应成功，获得相应的数据                            InputStream is = urlConn.getInputStream();//得到数据流（输入流）                            byte[] buffer = new byte[1024];                            int length = 0;                            String str = "";                            while((length = is.read(buffer)) > -1){                                str += new String(buffer,0,length);                            }                            Log.d("main", str);                            //解析json，展示在ListView（GridView）                            //h.sendMessage(h.obtainMessage(3, str));                            LoginResult lr = new Gson().fromJson(str, LoginResult.class);                            if(lr.getCode() == 1){                                //可以本地保存服务器发送过来的完整的账号信息                                User user = lr.getUser();//得到账号的完整信息（从服务器发送过来）                                String header = user.getHeader();//得到头像url                                Intent it = new Intent(MainActivity.this,SuccessActivity.class);                                it.putExtra("headerUrl", header);                                startActivity(it);                            }else{                                Toast.makeText(MainActivity.this, "登陆失败，请重新输入", 0).show();                            }                        }                    } catch (MalformedURLException e) {                        // TODO Auto-generated catch block                        e.printStackTrace();                    } catch (IOException e) {                        // TODO Auto-generated catch block                        e.printStackTrace();                    }                };            }.start();1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52

get请求

login.setOnClickListener(new OnClickListener() {                @Override        public void onClick(View v) {            // TODO Auto-generated method stub            final String nameValue = username.getText().toString();            final String passValue = password.getText().toString();            //访问服务器            new Thread(){                public void run() {                    //拼装url                    //URLEncoder.encode对汉字进行编码，服务器进行解码设置，解决中文乱码                    try {                        String lastUrl = login_url + "?username="+URLEncoder.encode(nameValue, "utf-8")+"&password="+passValue;                        URL url = new URL(lastUrl);                        HttpURLConnection urlConn = (HttpURLConnection) url.openConnection();//开发访问此连接                        //设置访问时长和相应时长                        urlConn.setConnectTimeout(5*1000);//设置连接时间为5秒                        urlConn.setReadTimeout(5*1000);//设置读取时间为5秒                        int code = urlConn.getResponseCode();//获得相应码                        if(code == 200){//相应成功，获得相应的数据                            InputStream is = urlConn.getInputStream();//得到数据流（输入流）                            byte[] buffer = new byte[1024];                            int length = 0;                            String data = "";                            while((length = is.read(buffer)) != -1){                                String str = new String(buffer,0,length);                                data += str;                            }                            Log.d("main", data);                            //解析json，展示在ListView（GridView）                            h.sendMessage(h.obtainMessage(2, data));                        }                    } catch (MalformedURLException e) {                        // TODO Auto-generated catch block                        e.printStackTrace();                    } catch (IOException e) {                        // TODO Auto-generated catch block                        e.printStackTrace();                    }                };            }.start();        };    });1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49