史上最简单的servlet项目实例
2016-05-14 23:17
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在网上找了很久的java+jsp项目实例,介绍的都大同小异,然而没有一个自己真正运行成功的项目。几经周折,终于整理出了自己认为最简单的一个servlet实例。
首先新建一个web项目,这个网上有很多教程,我就不在这里啰嗦了,直接上代码。
-------------------------------------------------------------------------------------------------------------------------------------------------------
index.jsp页面代码:
<html>
<head>
<%@ page contentType="text/html;charset=UTF-8"%>
<title>QIMITY</title>
</head>
<body>
<form action="${pageContext.request.contextPath}/login">
<input type="text" name="user"/>
<input type="text" name="password"/>
<input type="submit" value="登录"/>
</form>
</body>
</html>
--------------------------------------------------------------------------------------------------------------------------------------------------------
Login.java类代码:
package com;
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 Login extends HttpServlet{
private static final long serialVersionUID = 356393290108927194L;
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
System.out.println("OK!");
}
}
-------------------------------------------------------------------------------------------------------------------------------------------------------
web.xml配置文件信息:
<?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_3_0.xsd" id="WebApp_ID" version="3.0">
<servlet>
<servlet-name>entry</servlet-name>
<servlet-class>com.Login</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>entry</servlet-name>
<url-pattern>/login</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>
----------------------------------------------------------------------------------------------------------------------------------------------------------
三个文件都创建好了之后运行tomcat,在登录页面点击登录按钮,如果在eclipse的后台输出了"OK!"则说明项目运行成功!
首先新建一个web项目,这个网上有很多教程,我就不在这里啰嗦了,直接上代码。
-------------------------------------------------------------------------------------------------------------------------------------------------------
index.jsp页面代码:
<html>
<head>
<%@ page contentType="text/html;charset=UTF-8"%>
<title>QIMITY</title>
</head>
<body>
<form action="${pageContext.request.contextPath}/login">
<input type="text" name="user"/>
<input type="text" name="password"/>
<input type="submit" value="登录"/>
</form>
</body>
</html>
--------------------------------------------------------------------------------------------------------------------------------------------------------
Login.java类代码:
package com;
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 Login extends HttpServlet{
private static final long serialVersionUID = 356393290108927194L;
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
System.out.println("OK!");
}
}
-------------------------------------------------------------------------------------------------------------------------------------------------------
web.xml配置文件信息:
<?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_3_0.xsd" id="WebApp_ID" version="3.0">
<servlet>
<servlet-name>entry</servlet-name>
<servlet-class>com.Login</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>entry</servlet-name>
<url-pattern>/login</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>
----------------------------------------------------------------------------------------------------------------------------------------------------------
三个文件都创建好了之后运行tomcat,在登录页面点击登录按钮,如果在eclipse的后台输出了"OK!"则说明项目运行成功!
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