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struts1环境搭建与deamon实现

2013-12-10 09:42 253 查看

1 准备ActionForm与Acion 的java文件

LoginAction.java：

package myAction;

import javax.servlet.http.*;

import org.apache.struts.action.*;

import myActionForm.LoginForm;

public class LoginAction extends Action{

@Override
public ActionForward execute(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response)
throws Exception {
// TODO Auto-generated method stub
String str = "";
LoginForm login = (LoginForm)form;
if(login.getUsername().equals("") || login.getPassword().equals("") || login.getUsername() == null || login.getPassword()==null){
request.setAttribute("message", "no user or no passwd");
str = "login";
}else if(login.getUsername().equals("bobo") && login.getPassword().equals("123456")){
str = "success";
}else{
str = "login";
}

return mapping.findForward(str);
}

}

LoginForm.java 并添加 validate代码

package myActionForm;

import javax.servlet.http.HttpServletRequest;

import org.apache.struts.action.ActionErrors;

import org.apache.struts.action.ActionForm;

import org.apache.struts.action.ActionMapping;

import org.apache.struts.action.ActionMessage;

public class LoginForm 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;
}
@Override
public ActionErrors validate(ActionMapping mapping,
HttpServletRequest request) {
// TODO Auto-generated method stub
ActionErrors errors = new ActionErrors();
if(username == "" || password == ""){
errors.add("name",new ActionMessage("hello.error.name"));
}
return errors;
}

}

2 准备View层的 login.jsp (登录页面)success.jsp（成功跳转页面）

login.jsp

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"

pageEncoding="ISO-8859-1"%>

<!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=ISO-8859-1">

<title>Insert title here</title>

</head>

<body>

<% String mess = (String)request.getAttribute("message");

if(mess != null){
out.println("<script language = 'javascript'>alert('"+mess+"')</script>");

}

%>

<form action="login.do" method="get">

username:<input type="text" name="username"><br/>

password:<input type="password" name="password"><br/>

<input type="submit" value = "submit">

</form>

</body>

</html>

success.jsp

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"

pageEncoding="ISO-8859-1"%>

<!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=ISO-8859-1">

<title>Insert title here</title>

</head>

<body>

congratulation!

</body>

</html>

3 配置文件

web.xml用通用的配置文件

struts-config.xml :

<?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="loginform" type="myActionForm.LoginForm"></form-bean>

</form-beans>

<global-exceptions>

</global-exceptions>

<action-mappings>

<action name="loginform" //与loginform保持一致

type="myAction.LoginAction" //指定类

path="/login" // 指定action的path注意与表单 action保持一致

input="/login.jsp">// 输入的页面

<forward name="success" path="/success.jsp"></forward>

<forward name="login" path="/login.jsp"></forward>

</action>



</action-mappings>

<message-resources parameter="MessageResources" />

</struts-config>

PS调试过程：

期间报出 404的错误:

HTTP Status 404 - Servlet action is not available

type Status report

message Servlet action is not available

description The requested resource is not available.

反复查看配置，结果是 plug-in配置了多余的表单校验。

(提醒，千万注意，不要按照有的微博上的介绍，把 plug-in引入（引入validate xml的引入）。害的自己check 配置半天，结果是发现plug_in配置的错误！)

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