day20

来源：互联网发布：vs2010 编译php扩展编辑：程序博客网时间：2024/05/22 00:53

doGet 直接连接在url后边是显示的

doPost 隐式的，比get安全

HttpUrlConnection 是sun公司封装成的网络连接
HttpClient 是apache使用HttpUrlConnection封装的类
Android 中volley asyncHttp xutils

doGet

import java.awt.BorderLayout;import java.awt.EventQueue;import javax.swing.JFrame;import javax.swing.JPanel;import javax.swing.border.EmptyBorder;import javax.swing.JButton;import java.awt.event.ActionListener;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStream;import java.io.InputStreamReader;import java.net.ConnectException;import java.net.HttpURLConnection;import java.net.MalformedURLException;import java.net.SocketTimeoutException;import java.net.URL;import java.net.URLConnection;import java.awt.event.ActionEvent;public class UrlFrame extends JFrame {    private JPanel contentPane;    /**     * Launch the application.     */    public static void main(String[] args) {        EventQueue.invokeLater(new Runnable() {            public void run() {                try {                    UrlFrame frame = new UrlFrame();                    frame.setVisible(true);                } catch (Exception e) {                    e.printStackTrace();                }            }        });    }    /**     * Create the frame.     */    public UrlFrame() {        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);        setBounds(100, 100, 450, 300);        contentPane = new JPanel();        contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));        setContentPane(contentPane);        contentPane.setLayout(null);        JButton btnNewButton = new JButton("doGet测试");        btnNewButton.addActionListener(new ActionListener() {            public void actionPerformed(ActionEvent arg0) {                String urlString = "http://localhost:8080/MyServerTestDay19/ServerLetTest?username=张三&password=321654";                try {                    URL url = new URL(urlString);                    URLConnection connect = url.openConnection();//连接url                    //强制转换                    HttpURLConnection httpConnection = (HttpURLConnection)connect;                    //设置请求方法                    httpConnection.setRequestMethod("GET");                    //设置连接超时时间                    httpConnection.setConnectTimeout(3000);                    //设置读取时间超时                    httpConnection.setReadTimeout(3000);                    //设置编码格式和可接受的数据类型                    httpConnection.setRequestProperty("Accept-Charset", "utf-8");                    //设置可接受的java对象                    httpConnection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");                    int code = httpConnection.getResponseCode();                    System.out.println("Http状态码："+code);                    if(code==HttpURLConnection.HTTP_OK){                        InputStream in = httpConnection.getInputStream();                        BufferedReader br = new BufferedReader(new InputStreamReader(in));                        String line= br.readLine();                        while(line!=null){                            System.out.println(line);                            line = br.readLine();                        }                    }                } catch (SocketTimeoutException e){                    System.out.println("连接超时");                } catch (ConnectException e){                    System.out.println("服务器拒绝连接");                } catch (MalformedURLException e) {                    // TODO Auto-generated catch block                    e.printStackTrace();                } catch (IOException e) {                    // TODO Auto-generated catch block                    e.printStackTrace();                }             }        });        btnNewButton.setBounds(117, 85, 181, 92);        contentPane.add(btnNewButton);    }}

运行结果：
这里写图片描述

doPost

import java.awt.BorderLayout;import java.awt.EventQueue;import javax.swing.JFrame;import javax.swing.JPanel;import javax.swing.border.EmptyBorder;import javax.swing.JButton;import java.awt.event.ActionListener;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStream;import java.io.InputStreamReader;import java.net.ConnectException;import java.net.HttpURLConnection;import java.net.MalformedURLException;import java.net.SocketTimeoutException;import java.net.URL;import java.net.URLConnection;import java.awt.event.ActionEvent;public class DoPostTest extends JFrame {    private JPanel contentPane;    /**     * Launch the application.     */    public static void main(String[] args) {        EventQueue.invokeLater(new Runnable() {            public void run() {                try {                    DoPostTest frame = new DoPostTest();                    frame.setVisible(true);                } catch (Exception e) {                    e.printStackTrace();                }            }        });    }    /**     * Create the frame.     */    public DoPostTest() {        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);        setBounds(100, 100, 450, 300);        contentPane = new JPanel();        contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));        setContentPane(contentPane);        contentPane.setLayout(null);        JButton btnDopost = new JButton("doPost测试");        btnDopost.addActionListener(new ActionListener() {            public void actionPerformed(ActionEvent arg0) {                String urlString = "http://localhost:8080/MyServerTestDay19/ServerLetTest";                try {                    URL url = new URL(urlString);                    URLConnection connect = url.openConnection();//连接url                    //强制转换                    HttpURLConnection httpConnection = (HttpURLConnection)connect;                    //设置请求方法                    httpConnection.setRequestMethod("POST");                    //设置连接超时时间                    httpConnection.setConnectTimeout(3000);                    //设置读取时间超时                    httpConnection.setReadTimeout(3000);                    //设置编码格式和可接受的数据类型                    httpConnection.setRequestProperty("Accept-Charset", "utf-8");                    //设置可接受的java对象                    httpConnection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");                    //设置可以读取服务器返回的内容                    httpConnection.setDoInput(true);                    //设置客户端可以给服务器提交数据                    httpConnection.setDoOutput(true);                    //post方法不允许缓存                    httpConnection.setUseCaches(false);                    String params = "username=zhangsan&password=654465321";                    httpConnection.getOutputStream().write(params.getBytes());                    int code = httpConnection.getResponseCode();                    System.out.println("Http状态码："+code);                    if(code==HttpURLConnection.HTTP_OK){                        InputStream in = httpConnection.getInputStream();                        BufferedReader br = new BufferedReader(new InputStreamReader(in));                        String line= br.readLine();                        while(line!=null){                            System.out.println(line);                            line = br.readLine();                        }                    }                } catch (SocketTimeoutException e){                    System.out.println("连接超时");                } catch (ConnectException e){                    System.out.println("服务器拒绝连接");                } catch (MalformedURLException e) {                    // TODO Auto-generated catch block                    e.printStackTrace();                } catch (IOException e) {                    // TODO Auto-generated catch block                    e.printStackTrace();                }            }        });        btnDopost.setBounds(65, 53, 306, 150);        contentPane.add(btnDopost);    }}

运行结果：
这里写图片描述

HttpClientDoGet

import java.awt.BorderLayout;import java.awt.EventQueue;import javax.swing.JFrame;import javax.swing.JPanel;import javax.swing.border.EmptyBorder;import org.apache.http.HttpEntity;import org.apache.http.HttpResponse;import org.apache.http.StatusLine;import org.apache.http.client.ClientProtocolException;import org.apache.http.client.HttpClient;import org.apache.http.client.methods.HttpGet;import org.apache.http.impl.client.HttpClientBuilder;import javax.swing.JButton;import java.awt.event.ActionListener;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStream;import java.io.InputStreamReader;import java.net.HttpURLConnection;import java.util.concurrent.TimeUnit;import java.awt.event.ActionEvent;public class HttpClientDoGet extends JFrame {    private JPanel contentPane;    /**     * Launch the application.     */    public static void main(String[] args) {        EventQueue.invokeLater(new Runnable() {            public void run() {                try {                    HttpClientDoGet frame = new HttpClientDoGet();                    frame.setVisible(true);                } catch (Exception e) {                    e.printStackTrace();                }            }        });    }    /**     * Create the frame.     */    public HttpClientDoGet() {        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);        setBounds(100, 100, 450, 300);        contentPane = new JPanel();        contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));        setContentPane(contentPane);        contentPane.setLayout(null);        JButton btnDogethttp = new JButton("doGetHttp");        btnDogethttp.addActionListener(new ActionListener() {            public void actionPerformed(ActionEvent arg0) {                String urlString = "http://localhost:8080/MyServerTestDay19/ServerLetTest?username=张三&password=321654";                HttpClientBuilder builder = HttpClientBuilder.create();                builder.setConnectionTimeToLive(3000, TimeUnit.MILLISECONDS);                //生成client的builder                HttpClient client = builder.build();//生成client                HttpGet get = new HttpGet(urlString);//设置为get方法                get.setHeader("Content-Type","application/x-www-form-urlencoded;charset=UTF-8");                //设置服务器的读取方式为UTF-8                try {                    HttpResponse response = client.execute(get);//执行get方法得到服务器的返回的所有数据都在response中                    StatusLine statusLine = response.getStatusLine();//httpClient访问服务器返回的表头，包含http状态码                    int code = statusLine.getStatusCode();//得到状态码                    if(code==HttpURLConnection.HTTP_OK){                        HttpEntity entity = response.getEntity();//得到数据实体                        InputStream in = entity.getContent();//得到输入流                        BufferedReader br = new BufferedReader(new InputStreamReader(in));                        String line = br.readLine();                        while(line!=null){                            System.out.println(line);                            line = br.readLine();                        }                    }                } catch (ClientProtocolException e) {                    // TODO Auto-generated catch block                    e.printStackTrace();                } catch (IOException e) {                    // TODO Auto-generated catch block                    e.printStackTrace();                }            }        });        btnDogethttp.setBounds(62, 61, 300, 139);        contentPane.add(btnDogethttp);    }}

运行结果：
这里写图片描述

HttpClientDoPost

import java.awt.BorderLayout;import java.awt.EventQueue;import javax.swing.JFrame;import javax.swing.JPanel;import javax.swing.border.EmptyBorder;import javax.xml.ws.Response;import org.apache.http.HttpEntity;import org.apache.http.HttpResponse;import org.apache.http.NameValuePair;import org.apache.http.client.ClientProtocolException;import org.apache.http.client.HttpClient;import org.apache.http.client.entity.UrlEncodedFormEntity;import org.apache.http.client.methods.HttpPost;import org.apache.http.impl.client.HttpClientBuilder;import org.apache.http.message.BasicNameValuePair;import javax.swing.JButton;import java.awt.event.ActionListener;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStream;import java.io.InputStreamReader;import java.io.UnsupportedEncodingException;import java.util.ArrayList;import java.util.concurrent.TimeUnit;import java.awt.event.ActionEvent;public class HttpClientDoPost extends JFrame {    private JPanel contentPane;    /**     * Launch the application.     */    public static void main(String[] args) {        EventQueue.invokeLater(new Runnable() {            public void run() {                try {                    HttpClientDoPost frame = new HttpClientDoPost();                    frame.setVisible(true);                } catch (Exception e) {                    e.printStackTrace();                }            }        });    }    /**     * Create the frame.     */    public HttpClientDoPost() {        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);        setBounds(100, 100, 450, 300);        contentPane = new JPanel();        contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));        setContentPane(contentPane);        contentPane.setLayout(null);        JButton btnNewButton = new JButton("doPostTest");        btnNewButton.addActionListener(new ActionListener() {            public void actionPerformed(ActionEvent arg0) {                String url = "http://localhost:8080/MyServerTestDay19/ServerLetTest";                HttpClientBuilder builder = HttpClientBuilder.create();                builder.setConnectionTimeToLive(3000, TimeUnit.MILLISECONDS);                HttpClient client = builder.build();                HttpPost post = new HttpPost(url);                NameValuePair pair1 = new BasicNameValuePair("username", "zhangsan");                NameValuePair pair2 = new BasicNameValuePair("password", "123456");                ArrayList<NameValuePair> params = new ArrayList<>();                params.add(pair1);                params.add(pair2);                try {                    post.setEntity(new UrlEncodedFormEntity(params,"UTF-8"));                    post.setHeader("Content-type","application/x-www-form-urlencoded; charset=UTF-8");                    HttpResponse response = client.execute(post);                    int code = response.getStatusLine().getStatusCode();                    if(code==200){                        HttpEntity enity = response.getEntity();                        InputStream in = enity.getContent();                        BufferedReader br = new BufferedReader(new InputStreamReader(in));                        String line = br.readLine();                        while(line!=null){                            System.out.println(line);                            line = br.readLine();                        }                    }                } catch (UnsupportedEncodingException e) {                    // TODO Auto-generated catch block                    e.printStackTrace();                } catch (ClientProtocolException e) {                    // TODO Auto-generated catch block                    e.printStackTrace();                } catch (IOException e) {                    // TODO Auto-generated catch block                    e.printStackTrace();                }            }        });        btnNewButton.setBounds(184, 108, 93, 23);        contentPane.add(btnNewButton);    }}

运行结果：
这里写图片描述

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