Struts2_ActionWildcard_通配符配置-优快云博客

本文链接：https://blog.youkuaiyun.com/hugui123456ccc/article/details/83707954

本文介绍如何在Struts2框架中使用通配符进行控制器的配置,以减少配置文件的复杂度,并展示了具体的配置示例及对应的Action实现。

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<?xml version="1.0" encoding="GB18030" ?>
<%@ page language="java" contentType="text/html; charset=GB18030"
    pageEncoding="GB18030"%>

<% String context = request.getContextPath(); %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=GB18030" />
<title>Insert title here</title>
</head>
<body>
使用通配符，将配置量降到最低<br />
<a href="<%=context %>/actions/Studentadd">添加学生</a>
<a href="<%=context %>/actions/Studentdelete">删除学生</a>
<br />
不过，一定要遵守"约定优于配置"的原则
<br />
<a href="<%=context %>/actions/Teacher_add">添加老师</a>
<a href="<%=context %>/actions/Teacher_delete">删除老师</a>
<a href="<%=context %>/actions/Course_add">添加课程</a>
<a href="<%=context %>/actions/Course_delete">删除课程</a>

</body>
</html>


<?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">

<struts>
    <constant name="struts.devMode" value="true" />
    <package name="actions" extends="struts-default" namespace="/actions">
    <!-- 如果有几个都能匹配，则先匹配最精确的 -->
        <action name="Student*" class="com.hugui.struts2.action.StudentAction" method="{1}">
            <result>/Student{1}_success.jsp</result>
        </action>

        <action name="*_*" class="com.hugui.struts2.action.{1}Action" method="{2}">
            <result>/{1}_{2}_success.jsp</result>
            <!-- {0}_success.jsp -->
        </action>
    </package>
</struts>


package com.hugui.struts2.action;

import com.opensymphony.xwork2.ActionSupport;

public class StudentAction extends ActionSupport {
	public String add() {
		return SUCCESS;
	}
	public String delete() {
		return SUCCESS;
	}

}


package com.hugui.struts2.action;

import com.opensymphony.xwork2.ActionSupport;

public class TeacherAction extends ActionSupport {
	public String add() {
		return SUCCESS;
	}

	public String delete() {
		return SUCCESS;
	}


}