struts1--helloworld
1. 增加必要的jar包
antlr-2.7.2.jar
commons-beanutils-1.7.0.jar
commons-chain-1.1.jar
commons-digester-1.8.jar
commons-logging-1.0.4.jar
commons-validator-1.3.1.jar
oro-2.0.8.jar
struts-core-1.3.8.jar
struts-taglib-1.3.8.jar
struts-tiles-1.3.8.jar
2. 编写相应的视图页面
login.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>用户登录</title> </head> <body> <form id="form1" action="login.do" method="post"> Username: <input type="text" name="username"><br> Password: <input type="text" name="password"><br> <input type="submit" value="Submit"> </form> </body> </html>
success.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%@page import="ch01.formbean.UserForm"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>登录成功</title>
</head>
<body>
<%
UserForm userForm = (UserForm)request.getAttribute("userForm");
%>
用户名：<%=userForm.getUsername()%>
密码：<%=userForm.getPassword()%>
</body>
</html>
error.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>系统错误</title> </head> <body> 登录失败!!! </body> </html>
3. 编写ActionForm用于封装页面信息，内容如下：
package ch01.formbean;
import org.apache.struts.action.ActionForm;
public class UserForm extends ActionForm {
private String username;
private String password;
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
}
4. 编写处理用户请求的Action，内容如下：
package ch01.action;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import ch01.formbean.UserForm;
public class LoginAction extends Action {
@Override
public ActionForward execute(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response)
throws Exception {
System.out.println(this.getClass().getName() + " 正在处理用户请求...");
UserForm userForm = (UserForm)form;
if(null == userForm.getUsername() || "".equals(userForm.getUsername())){
return mapping.findForward("error");
}else{
return mapping.findForward("success");
}
}
}
5. 在web.xml增加Struts1核心控制器，内容如下：
<?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"> <servlet> <servlet-name>action</servlet-name> <servlet-class>org.apache.struts.action.ActionServlet</servlet-class> <init-param> <param-name>config</param-name> <param-value>/WEB-INF/struts-config.xml</param-value> </init-param> </servlet> <servlet-mapping> <servlet-name>action</servlet-name> <url-pattern>*.do</url-pattern> </servlet-mapping> <welcome-file-list> <welcome-file>index.jsp</welcome-file> </welcome-file-list> </web-app>
6. 在WEB-INF下创建Struts1的配置文件struts-config.xml，内容如下：
<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE struts-config PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 1.3//EN" "http://struts.apache.org/dtds/struts-config_1_3.dtd"> <struts-config> <form-beans> <form-bean name="userForm" type="ch01.formbean.UserForm"/> </form-beans> <action-mappings> <action path="/login" type="ch01.action.LoginAction" name="userForm" scope="request"> <forward name="success" path="/success.jsp"/> <forward name="error" path="/error.jsp"/> </action> </action-mappings> </struts-config>
4. 编写完成，发布即可测试。