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简单的servlet实例,实现登录信息传送

2017-09-07 11:57 453 查看
项目结构:


java文件:public class HelloWorld extends HttpServlet {

public HelloWorld() {
super();
}

public void destroy() {
super.destroy();
}

public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {

System.out.println(request.getParameter("uname"));
}

}web.xml文件:
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5"
xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"> <display-name></display-name>
<servlet>
<servlet-name>HelloWorld</servlet-name>
<servlet-class>test.HelloWorld</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>HelloWorld</servlet-name>
<url-pattern>/login</url-pattern>
</servlet-mapping>
</web-app>jsp页面:
<body>
<form action="login">
username:<input type="text" name="uname"><br>
password:<input type="password" name="pwd"><br>
<input type="submit">
</form>
</body>登录截图:

输出截图:


这样一个简单的登录servlet实例就完成啦
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