struts2.0（1-10）

最新推荐文章于 2024-10-15 11:37:04 发布

pingfanwuzhe

最新推荐文章于 2024-10-15 11:37:04 发布

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分类专栏： Struts2.x 文章标签： struts string action class login encoding

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Stuts2.0总结

向先函 2009-11-25

PLSQLDev –Oracle10开发工具

[1]

一、配置tomcat自动重载

C:/Documents and Settings/Administrator/桌面/apache-tomcat-6.0.18/apache-tomcat-6.0.18/conf/server.xml

配置如下：

</Host>

</Engine>

</Service>

</Server>

把tomcat加到MyEclipse就完成了。

基本的登录实现

2要加的初步jar包有: 在官方的struts2.0-all包下：

Common-io-1.3.2.jar

Common-logging-1.0.4.jar

Common-fileupload-1.2.1.jar

Freemarker-2.3.15.jar

Ognl-2.7.3.jar

Struts2-core-2.1.8.1.jar

Xwork-core-2.1.6.jar

1 web.xml

<?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">

<filter-name>struts2</filter-name>

<filter-class>org.apache.struts2.dispatcher.FilterDispatcher</filter-class>

</filter>

<filter-mapping>

<filter-name>struts2</filter-name>

<url-pattern>/*</url-pattern>

</filter-mapping>

</web-app>

2 login.jsp

<html>

<head>

<title>login.jsp</title>

</head>

<body>

<br>

username:

<br>

password:

<br>

</form>

</body>

</html>

3 struts.xml

<?xml version="1.0" encoding="UTF-8" ?>

<!DOCTYPE struts PUBLIC

"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"

"http://struts.apache.org/dtds/struts-2.0.dtd">

<!--<action name="login"的name是表单的login.aciton的前面

result 是excuse 返回的页面，默认success -->

<result>/success.jsp</result>

</action>

</package>

</struts>

4 LoginAction

package com.test.action;

public class LoginAction {

private String username;

private String password;

GET 和Set 的复写

//最后执行的方法

public String execute() throws Exception

{

return "success";

}

5 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>

<title>success.jsp</title>

</head>

<body>

username:${requestScope.username}<br>

password:${requestScope.password }<br>

username:<%=request.getParameter("username") %><br>

password:<%=request.getParameter("password") %><br>

</body>

</html>

标签的使用：

<%@ page language="java" import="java.util.*" pageEncoding="gb2312"%>

<%@ taglib prefix = "s" uri = "/struts-tags" %>

<html>

<head>

<title>login2.jsp</title>

</head>

<body>

<s:form action = "login">

<s:textfield name ="username" label = "username"/>

<s:password name = "password" label ="password" />

<s:submit label = "submit" value="提交"></s:submit>

</s:form>

</body>

</html>

验证：

package com.test.action;

import com.opensymphony.xwork2.ActionSupport;

public class LoginAction extends ActionSupport {

private String username;

private String password;

GET 和Set 的复写

//最后执行的方法一般调用业务组件

public String execute() throws Exception

{

if("hello".equals(this.getUsername())&&"world".equals(this.getPassword()))

{

return "success";

}else

{

this.addFieldError("username", "username or password error");

return "failer";

}

@Override

public void validate() {

if(null == this.getUsername()||"".equals(this.getUsername().trim()))

{

this.addFieldError("username", "username required");

}

if(null==this.getPassword()||"".equals(this.getPassword().trim()))

{

this.addFieldError("password", "password required");

}

Struts.xml

<?xml version="1.0" encoding="UTF-8" ?>

<!DOCTYPE struts PUBLIC

"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"

"http://struts.apache.org/dtds/struts-2.0.dtd">

<!--<action name="login"的name是表单的login.aciton的前面

result 是excuse 返回的页面，默认success

输入框的input 是固定的-->

<result name="input">/login2.jsp</result>

<result name="failer">/login2.jsp</result>

<result>/success.jsp</result>

</action>

</package>

</struts>

Struts类型转换

Ognl 是一种表达式语言

input.jsp

<%@ page language="java" import="java.util.*" pageEncoding="gb2312"%>

<%@ taglib prefix = "s" uri = "/struts-tags" %>

<html>

<head>

<title>input.jsp</title>

</head>

<body>

<h3>使用逗号将点的两个坐标分割开</h3>

<s:form action = "pointConverter">

<s:textfield name ="point" label = "point"/>

<s:password name = "age" label ="age" />

<s:password name = "username" label ="username" />

<s:password name = "date" label ="birthday" />

<s:submit label = "submit" value="提交"></s:submit>

</s:form>

</body[G1] >

</html>

Webwork的官网，xwork或其他源码都在里面

http://www.opensymphony.com/

struts.xml:

<?xml version="1.0" encoding="UTF-8" ?>

<!DOCTYPE struts PUBLIC

"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"

"http://struts.apache.org/dtds/struts-2.0.dtd">

<!--<action name="login"的name是表单的login.aciton的前面

result 是excuse 返回的页面，默认success

输入框的input 是固定的-->

<result name="input">/login2.jsp</result>

<result name="failer">/login2.jsp</result>

<result>/success.jsp</result>

</action>

<result name = "success">/output.jsp</result>

</action>

</package>

</struts>

PointAction.java

package com.test.action;

import java.util.Date;

import com.opensymphony.xwork2.ActionSupport;

import com.test.bean.Point;

public class PointAction extends ActionSupport {

private Point point;

private int age;

private String username;

private Date date;

GET 和Set 的复写

@Override//使用关键字返回

public String execute() throws Exception {

return SUCCESS;

}

PointAction-conversion.properties//一定和使用的Action在同一个目录下

point=com.test.converter.PointConverter

convertValue转化类

package com.test.converter;

import java.util.Map;

import com.test.bean.Point;

import ognl.DefaultTypeConverter;

public class PointConverter extends DefaultTypeConverter {

@Override

public Object convertValue(Map context, Object value, Class toType) {

// 客户端到服务器的转换

if (Point.class == toType) {

Point point = new Point();

String[] str = (String[]) value;

String[] paramValues = str[0].split(",");

int x = Integer.parseInt(paramValues[0]);

int y = Integer.parseInt(paramValues[1]);

point.setX(x);

point.setY(y);

return point;

}

// 服务器到客户端的转换如果不转换将执行里边的tostring方法

if (String.class == toType) {

Point point = (Point) value;

int x = point.getX();

int y = point.getY();

String result = "[x=" + x + ", y=" + y + "]";

return result;

}

return null;

}

Point类

package com.test.bean;

public class Point {

private int x;

private int y;

GET 和Set 的复写

}

output.jsp：

<%@ page language="java" contentType="text/html; charset=gbk"

pageEncoding="gbk"%>

<%@ taglib prefix = "s" uri = "/struts-tags" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">

<html>

<head>

<title>output.jsp</title>

</head>

<body>

point:<s:property value = "point"/><br>

age:<s:property value = "age"/><br>

username:<s:property value = "username"/><br>

date:<s:property value = "date"/><br>

</body>

</html>

总结：流程input.jsp 》struts.xml: 》PointAction.java 》 PointAction-conversion.properties 》convertValue转化类》 Point类》PointAction.java 》struts.xml: 》output.jsp：》PointAction.java 》convertValue转化类》PointAction.java 》output.jsp：