第73節：Java中的HTTPServletReauest和HTTPServletResponse
摘要：
標題圖
第73節： Java 中的 HTTPServletReauest 和 HTTPServletResponse
HTTP 協議
客戶端與伺服器端通訊的一種規則。
request :
請求行
請求頭
請求體
...
標題圖
第73節： Java 中的 HTTPServletReauest 和 HTTPServletResponse
HTTP 協議
客戶端與伺服器端通訊的一種規則。
request :
請求行
請求頭
請求體
response :
響應行
響應頭
響應體
Get :
請求的時候帶上的資料，在 url 上拼接，資料長度有限制
POST :
以流的方式寫資料，資料沒有限制
Content-Type: 資料型別 Content-Length: 多少長度的資料
Servlet 入門：
寫一個類，實現介面Servlet 註冊 web.xml <servlet> servlet-name: 自定義 servlet-class: 全路徑 <init-params> 不必要寫 -servletconfig </servlet> <servlet-mapping> <servlet-name>: 上面的servlet-name <url-patter>: 以正斜槓開頭 </servlet-mapping>
servlet的生命週期：
init: 預設情況下初次訪問時就會執行，伺服器啟動時，只能執行一次 提前： <servlet> servlet-name: servlet-class: <load-on-startup>2</load-on-startup> </servlet> service: 可以執行多次，只要進行請求 destory：銷燬的使用，銷燬在從伺服器中移除託管或shutdown.bat
// servlet
public class Demo implements Servlet {
@Override
void service(){
...
}
}
// 優化
繼承介面已有的實現類
// 抽象類一定有抽象方法，不一定，有抽象方法的，一定是抽象類
class Demo2 extends HttpServlet {
void doGet();
void doPost();
}
// 原始碼
public void service(ServletRequest req, ServletResponse res) throws ServletException, IOException {
HttpServletRequest request;
HttpServletResponse response;
try{
request = (HttpServletRequest) req;
response = (HttpServletResponse) res;
}catch(ClassCastException e){
throw new ServletException("non-HTTP request or response");
}
service(request,response);
}
HttpServletRequest 和 HttpServletResponse
效果
package com.dashucoding.servlet;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class Demo extends HttpServlet{
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
System.out.println("來了一個請求。。。");
}
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
doGet(req,resp);
}
}
<?xml version="1.0" encoding="UTF-8"?> <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5"> <display-name>ServletRegister</display-name> <welcome-file-list> <welcome-file>index.html</welcome-file> <welcome-file>index.htm</welcome-file> <welcome-file>index.jsp</welcome-file> <welcome-file>default.html</welcome-file> <welcome-file>default.htm</welcome-file> <welcome-file>default.jsp</welcome-file> </welcome-file-list> <servlet> <servlet-name>demo</servlet-name> <servlet-class>com.dashucoding.servlet.Demo</servlet-class> </servlet> <servlet-mapping> <servlet-name>demo</servlet-name> <url-pattern>/demo</url-pattern> </servlet-mapping> </web-app>
效果
結果
建立 Server
效果
// 建立ServletRegister ->選擇Servlet
package com.dashucoding.servlet;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* Servlet implementation class ServletRegister
*/
@WebServlet("/ServletRegister")
public class ServletRegister extends HttpServlet {
private static final long serialVersionUID = 1L;
/**
* @see HttpServlet#HttpServlet()
*/
public ServletRegister() {
super();
// TODO Auto-generated constructor stub
}
/**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
response.getWriter().append("Served at: ").append(request.getContextPath());
}
/**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
doGet(request, response);
}
}
package com.dashucoding.servlet;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* Servlet implementation class ServletRegister
*/
public class ServletRegister extends HttpServlet {
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
response.getWriter().append("Served at: ").append(request.getContextPath());
}
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
doGet(request, response);
}
}
<?xml version="1.0" encoding="UTF-8"?> <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5"> <display-name>TestRegister</display-name> <welcome-file-list> <welcome-file>index.html</welcome-file> <welcome-file>index.htm</welcome-file> <welcome-file>index.jsp</welcome-file> <welcome-file>default.html</welcome-file> <welcome-file>default.htm</welcome-file> <welcome-file>default.jsp</welcome-file> </welcome-file-list> <servlet> <description></description> <display-name>ServletRegister</display-name> <servlet-name>ServletRegister</servlet-name> <servlet-class>com.dashucoding.servlet.ServletRegister</servlet-class> </servlet> <servlet-mapping> <servlet-name>ServletRegister</servlet-name> <url-pattern>/ServletRegister</url-pattern> </servlet-mapping> </web-app>
效果
Servlet 配置路徑方式：
* : 就是個萬用字元，匹配任意文字。 /a* *.aa
ServletContext
// web.xml // 用於配置全域性的引數 <context-param> <param-name>dashu</param-name> <param-value>dashucoding</param-value> </context-param> // <init-param></init-param>
// 獲取物件
ServletContext context = getServletContext();
// 獲取引數值
String name = context.getInitParameter("dashu");
System.out.println("name=" + name);
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// 獲取物件
ServletContext context = getServletContext();
// 獲取引數值
String name = context.getInitParameter("dashu");
System.out.println("name=" + name);
}
獲取資原始檔
效果
package com.dashucoding.servlet;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.Properties;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* Servlet implementation class Demo03
*/
public class Demo03 extends HttpServlet {
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
// TODO Auto-generated method stub
// 獲取ServletContext物件
ServletContext context = getServletContext();
// 獲取給定的檔案在伺服器上面的絕對路徑
String path = context.getRealPath("");
System.out.println("path=" + path);
/*// 建立屬性物件
Properties properties = new Properties();
// 指定載入的資料來源
InputStream is = new FileInputStream(path);
properties.load(is);
// 獲取屬性的值
String name = properties.getProperty("name");
System.out.println("name=" + name);*/
}
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
doGet(request, response);
}
}
效果
效果
效果
package com.dashucoding.servlet;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.Properties;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* Servlet implementation class Demo03
*/
public class Demo03 extends HttpServlet {
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
// TODO Auto-generated method stub
// 獲取ServletContext物件
ServletContext context = getServletContext();
// 獲取給定的檔案在伺服器上面的絕對路徑
String path = context.getRealPath("/file/config.properties");
System.out.println("path=" + path);
// 建立屬性物件
Properties properties = new Properties();
// 指定載入的資料來源
InputStream is = new FileInputStream(path);
properties.load(is);
// 獲取屬性的值
String name = properties.getProperty("name");
System.out.println("name=" + name);
}
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
doGet(request, response);
}
}
效果
效果
package com.dashucoding.servlet;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.util.Properties;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* Servlet implementation class Demo03
*/
public class Demo03 extends HttpServlet {
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
//test01();
test02();
}
// alt + shift + z
private void test02() {
try {
// 獲取ServletContext物件
ServletContext context = getServletContext();
// 建立屬性物件
Properties properties = new Properties();
// 指定載入的資料來源
InputStream is = context.getResourceAsStream("/file/config.properties");
properties.load(is);
// 獲取屬性的值
String name = properties.getProperty("name");
System.out.println("name02=" + name);
is.close();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
// alt + shift + m
private void test01() throws FileNotFoundException, IOException {
// 獲取ServletContext物件
ServletContext context = getServletContext();
// 獲取給定的檔案在伺服器上面的絕對路徑
String path = context.getRealPath("/file/config.properties");
System.out.println("path=" + path);
// 建立屬性物件
Properties properties = new Properties();
// 指定載入的資料來源
InputStream is = new FileInputStream(path);
properties.load(is);
// 獲取屬性的值
String name = properties.getProperty("name");
System.out.println("name=" + name);
}
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
doGet(request, response);
}
}
效果
效果
package com.dashucoding.servlet;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.util.Properties;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* Servlet implementation class Demo03
*/
public class Demo03 extends HttpServlet {
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
//test01();
//test02();
test03();
}
private void test03() {
// TODO Auto-generated method stub
try {
// 獲取ServletContext物件
ServletContext context = getServletContext();
// 建立屬性物件
Properties properties = new Properties();
// 指定載入的資料來源
InputStream is = getClass().getClassLoader().getResourceAsStream("../../file/config.properties");
properties.load(is);
// 獲取屬性的值
String name = properties.getProperty("name");
System.out.println("name02=" + name);
is.close();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
// alt + shift + z
private void test02() {
try {
// 獲取ServletContext物件
ServletContext context = getServletContext();
// 建立屬性物件
Properties properties = new Properties();
// 指定載入的資料來源
InputStream is = context.getResourceAsStream("/file/config.properties");
properties.load(is);
// 獲取屬性的值
String name = properties.getProperty("name");
System.out.println("name02=" + name);
is.close();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
// alt + shift + m
private void test01() throws FileNotFoundException, IOException {
// 獲取ServletContext物件
ServletContext context = getServletContext();
// 獲取給定的檔案在伺服器上面的絕對路徑
String path = context.getRealPath("/file/config.properties");
System.out.println("path=" + path);
// 建立屬性物件
Properties properties = new Properties();
// 指定載入的資料來源
InputStream is = new FileInputStream(path);
properties.load(is);
// 獲取屬性的值
String name = properties.getProperty("name");
System.out.println("name=" + name);
}
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
doGet(request, response);
}
}
效果
ServletContext 可以獲取全域性配置引數，可以獲取 web 工程中的資源，儲存資料， servlet 簡共享資料。
使用 ServletContext 獲取資料
效果
package com.dashucoding.servlet;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* Servlet implementation class LoginServlet
*/
public class LoginServlet extends HttpServlet {
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// 別人把資料給你了,你就要進行獲取資料
String userName = request.getParameter("username");
String password = request.getParameter("password");
System.out.println("usrName=" + userName + "==password==" + password );
// 校驗資料
if("dashu".equals(userName)&&"123".equals(password)) {
System.out.println("登入成功");
}else {
System.out.println("登入失敗");
}
}
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
doGet(request, response);
}
}
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>Insert title here</title> </head> <body> <h2>登入</h2> <form action="LoginServlet" method="get"> 賬號:<input type="text" name="username"/><br> 密碼:<input type="text" name="password"/><br> <input type="submit" value="登入"/> </form> </body> </html>
效果
效果
效果
效果
效果
登入
package com.dashucoding.servlet;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* Servlet implementation class LoginServlet
*/
public class LoginServlet extends HttpServlet {
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// 別人把資料給你了,你就要進行獲取資料
String userName = request.getParameter("username");
String password = request.getParameter("password");
System.out.println("usrName=" + userName + "==password==" + password );
// 校驗資料
// response
PrintWriter pw = response.getWriter();
if("dashu".equals(userName)&&"123".equals(password)) {
// System.out.println("登入成功");
pw.write("login success");
}else {
// System.out.println("登入失敗");
pw.write("login failed");
}
}
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
doGet(request, response);
}
}
效果
效果
效果
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>Insert title here</title> </head> <body> <h2>登入成功</h2> <a href="CountSrevlet">獲取網站登入成功總數 </a> </body> </html>
package com.dashucoding.servlet;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* Servlet implementation class LoginServlet
*/
public class LoginServlet extends HttpServlet {
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// 別人把資料給你了,你就要進行獲取資料
String userName = request.getParameter("username");
String password = request.getParameter("password");
System.out.println("usrName=" + userName + "==password==" + password );
// 校驗資料
// response
PrintWriter pw = response.getWriter();
if("dashu".equals(userName)&&"123".equals(password)) {
// System.out.println("登入成功");
// pw.write("login success");
// 成功跳轉 login_success.html
// 設定狀態碼
response.setStatus(302);
response.setHeader("Location", "login_success.html");
}else {
// System.out.println("登入失敗");
pw.write("login failed");
}
}
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
doGet(request, response);
}
}
登入次數
效果
package com.dashucoding.servlet;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* Servlet implementation class CountServlet
*/
public class CountServlet extends HttpServlet {
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// 取值
int count = (int)getServletContext().getAttribute("count");
// 輸出介面
response.getWriter().write("login success count == "+count);
}
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
doGet(request, response);
}
}
package com.dashucoding.servlet;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* Servlet implementation class LoginServlet
*/
public class LoginServlet extends HttpServlet {
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// 別人把資料給你了,你就要進行獲取資料
String userName = request.getParameter("username");
String password = request.getParameter("password");
System.out.println("usrName=" + userName + "==password==" + password );
// 校驗資料
// response
PrintWriter pw = response.getWriter();
if("dashu".equals(userName)&&"123".equals(password)) {
// System.out.println("登入成功");
// pw.write("login success");
// 成功跳轉 login_success.html
// 成功次數累加 存東西
// 獲取以前舊的值,然後給它賦新值
Object obj = getServletContext().getAttribute("count");
int totalCount = 0;
if(obj != null) {
totalCount = (int)obj;
}
System.out.println("登入成功的此時是" + totalCount);
// 給count賦新值 set add put
getServletContext().setAttribute("count",totalCount+1);
// 設定狀態碼
response.setStatus(302);
response.setHeader("Location", "login_success.html");
}else {
// System.out.println("登入失敗");
pw.write("login failed");
}
}
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
doGet(request, response);
}
}
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>Insert title here</title> </head> <body> <h2>登入成功</h2> <a href="CountServlet">獲取網站登入成功總數 </a> </body> </html>
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>Insert title here</title> </head> <body> <h2>登入</h2> <form action="LoginServlet" method="get"> 賬號:<input type="text" name="username"/><br> 密碼:<input type="text" name="password"/><br> <input type="submit" value="登入"/> </form> </body> </html>
效果
效果
路徑：
<form action="login" method="get"> 賬號:<input type="text" name="username"/><br> 密碼:<input type="text" name="password"/><br> <input type="submit" value="登入"/> </form>
<servlet-mapping> <servlet-name>LoginServlet</servlet-name> <url-pattern>/login</url-pattern> </servlet-mapping>
// ServletContext 銷燬，伺服器移除，關閉伺服器 只要同一個應用程式就行
作用：
- 獲取全域性配置
- 獲取web工程中的資源
- 儲存資料
- 共享資料
HttpServletRequest 獲取請求頭
獲取所有的頭資訊:
package com.dashucoding.servlet;
import java.io.IOException;
import java.util.Enumeration;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* Servlet implementation class Demo01
*/
public class Demo01 extends HttpServlet {
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
// request封裝了客戶端提交過來的一切資料
// 拿所有的頭 得到一個列舉 List集合
Enumeration<String> headerNames = request.getHeaderNames();
while(headerNames.hasMoreElements()) {
String name = (String) headerNames.nextElement();
System.out.println("name=" + name);
}
}
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
doGet(request, response);
}
}
效果
效果
得到所有
package com.dashucoding.servlet;
import java.io.IOException;
import java.util.Enumeration;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* Servlet implementation class Demo01
*/
public class Demo01 extends HttpServlet {
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
// request封裝了客戶端提交過來的一切資料
// 拿所有的頭 得到一個列舉 List集合
Enumeration<String> headerNames = request.getHeaderNames();
while(headerNames.hasMoreElements()) {
String name = (String) headerNames.nextElement();
String value = request.getHeader(name);
System.out.println("name=" + name + ";value=" + value);
}
}
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
doGet(request, response);
}
}
效果
獲取提交的資訊
package com.dashucoding.servlet;
import java.io.IOException;
import java.util.Enumeration;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* Servlet implementation class Demo01
*/
public class Demo01 extends HttpServlet {
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
// request封裝了客戶端提交過來的一切資料
// 拿所有的頭 得到一個列舉 List集合
Enumeration<String> headerNames = request.getHeaderNames();
while(headerNames.hasMoreElements()) {
String name = (String) headerNames.nextElement();
String value = request.getHeader(name);
System.out.println("name=" + name + ";value=" + value);
}
System.out.println("----------");
// 請求體，拼接過來的資料 獲取客戶端提交過來的資料
String name = request.getParameter("name");
System.out.println("name=" + name);
// http://localhost:8080/RequestDemo01/Demo01?name=dashucoding
// http://localhost:8080/RequestDemo01/Demo01?name=dashucoding&address=GD
System.out.println("----------");
// 獲取所有引數
// Enumeration<String> parameterNames = request.getParameterNames();
Map<String, String[]> map = request.getParameterMap();
Set<String> keySet = map.keySet();
Iterator<String> iterator = keySet.iterator();
while(iterator.hasNext()) {
String key = (String) iterator.next();
System.out.println("key="+key+"，的值總數" + map.get(key).length);
String value = map.get(key)[0];
String value1 = map.get(key)[1];
String value2 = map.get(key)[2];
System.out.println(key+" == "+value + "=" + value1 + "=" + value2);
// http://localhost:8080/RequestDemo01/Demo01?name=dashucoding&address=GD
// name=zhangsan&name=lisi
}
}
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
doGet(request, response);
}
}
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