【 Struts2 配置】Struts2基本搭建

struts.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC
        "-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"
        "http://struts.apache.org/dtds/struts-2.3.dtd">
<struts>
    <constant name="struts.i18n.encoding" value="UTF-8"></constant>
    
    <package name="struts2-hibernate" extends="struts-default" namespace="/">
        <action name="student_*" class="k.action.StudentAction" method="{1}">
            <result name="list" type="redirectAction">student_list</result>
            <result name="toList">/WEB-INF/student/list.jsp</result>
            <result name="toAdd">/WEB-INF/student/toAdd.jsp</result>
            <result name="toUpdate">/WEB-INF/student/toUpdate.jsp</result>

        </action>
    </package>

</struts>

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
         version="3.1">

    <filter>
        <filter-name>struts2</filter-name>
        <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
    </filter>
    <filter-mapping>
        <filter-name>struts2</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

    <listener>
        <listener-class>k.util.StartSystemListener</listener-class>
    </listener>

    <welcome-file-list>
        <welcome-file>index.html</welcome-file>
        <welcome-file>index.htm</welcome-file>
        <welcome-file>index.jsp</welcome-file>
    </welcome-file-list>
</web-app>

StudentAction

package k.action;

import com.opensymphony.xwork2.ActionSupport;
import k.domain.Student;
import k.service.StudentService;
import org.apache.struts2.ServletActionContext;

import javax.servlet.http.HttpServletRequest;
import java.util.List;

public class StudentAction extends ActionSupport {
    public String list() {
        StudentService service = new StudentService();
        List list = service.list();
        HttpServletRequest request = ServletActionContext.getRequest();
        if (list == null || list.size() <= 0) {
            list.add(new Student("默认", 1));
        }
        request.setAttribute("list", list);
        return "toList";
    }

    public String toAdd() {
        return "toAdd";
    }

    public String add() {
        HttpServletRequest request = ServletActionContext.getRequest();
        String name = request.getParameter("name");
        String age = request.getParameter("age");
        StudentService service = new StudentService();
        service.add(new Student(name, Integer.parseInt(age)));
        return "list";
    }

    public String toUpdate() {
        HttpServletRequest request = ServletActionContext.getRequest();
        String id = request.getParameter("id");
        StudentService service = new StudentService();
        Student model = service.getModel(id);
        request.setAttribute("stu", model);
        return "toUpdate";
    }

    public String update() {
        HttpServletRequest request = ServletActionContext.getRequest();
        String id = request.getParameter("id");
        String name = request.getParameter("name");
        String age = request.getParameter("age");
        Student student = new Student(name, Integer.parseInt(age));
        student.setId(Integer.parseInt(id));
        StudentService service = new StudentService();
        service.update(student);
        return "list";
    }

    public String delete() {
        HttpServletRequest request = ServletActionContext.getRequest();
        String id = request.getParameter("id");
        StudentService service = new StudentService();
        Student model = service.getModel(id);
        service.delete(model);
        return "list";
    }
}

list.jsp

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ taglib prefix="c" uri="http://java.sun.com/jstl/core_rt" %>
<html>
<head>
    <title>list</title>
</head>
<body>
<h1><a href="${APP_PATH}/student_toAdd.action">student_toAdd</a></h1>
<form>
    <table>
        <thead>
        <tr>
            <th>id</th>
            <th>name</th>
            <th>age</th>
            <th>update</th>
            <th>delete</th>
        </tr>
        </thead>
        <tbody>
        <c:forEach items="${list}" var="stu">
            <tr>
                <td>${stu.id}</td>
                <td>${stu.name}</td>
                <td>${stu.age}</td>
                <td><a href="${APP_PATH}/student_toUpdate.action?id=${stu.id}">update</a></td>
                <td><a href="${APP_PATH}/student_delete.action?id=${stu.id}">delete</a></td>
            </tr>
        </c:forEach>
        </tbody>
    </table>
</form>
</body>
</html>

View Code

toAdd.jsp

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>add</title>
</head>
<body>
<form action="${APP_PATH}/student_add.action" method="post">
    <h2><input type="text" name="name" value="测试1"></h2>
    <h2><input type="text" name="age" value="11"></h2>
    <h2><input type="submit" value="submit"></h2>
</form>
</body>
</html>

View Code

toUpdate.jsp

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>update</title>
</head>
<body>
<form action="${APP_PATH}/student_update.action" method="post">
    <h2><input type="text" name="id" value="${stu.id}"></h2>
    <h2><input type="text" name="name" value="${stu.name}"></h2>
    <h2><input type="text" name="age" value="${stu.age}"></h2>
    <h2><input type="submit" value="submit"></h2>
</form>
</body>
</html>

View Code

【 Struts2 配置】Struts2基本搭建

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