zoukankan      html  css  js  c++  java
  • struts入门实例

    创建maven web项目

    配置pom.xml 加入struts的依赖包

    <dependency>
          <groupId>org.apache.struts</groupId>
          <artifactId>struts2-core</artifactId>
          <version>2.5.13</version>
        </dependency>

    下面是pom.xml的全部配置

    <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
      xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
      <modelVersion>4.0.0</modelVersion>
      <groupId>com.ssz</groupId>
      <artifactId>Demo03</artifactId>
      <packaging>war</packaging>
      <version>1.0-SNAPSHOT</version>
      <name>Demo03 Maven Webapp</name>
      <url>http://maven.apache.org</url>
      <dependencies>
        <dependency>
          <groupId>junit</groupId>
          <artifactId>junit</artifactId>
          <version>4.12</version>
          <scope>test</scope>
        </dependency>
        <!-- https://mvnrepository.com/artifact/org.projectlombok/lombok -->
        <dependency>
          <groupId>org.projectlombok</groupId>
          <artifactId>lombok</artifactId>
          <version>1.16.18</version>
          <scope>provided</scope>
        </dependency>
        <dependency>
          <groupId>javax.servlet</groupId>
          <artifactId>jstl</artifactId>
          <version>1.2</version>
        </dependency>
        <!-- servlet -->
        <dependency>
          <groupId>javax.servlet</groupId>
          <artifactId>javax.servlet-api</artifactId>
          <version>3.1.0</version>
          <scope>provided</scope>
        </dependency>
        <!--jsp  -->
        <dependency>
          <groupId>javax.servlet.jsp</groupId>
          <artifactId>jsp-api</artifactId>
          <version>2.2</version>
          <scope>provided</scope>
        </dependency>
        <dependency>
          <groupId>org.apache.struts</groupId>
          <artifactId>struts2-core</artifactId>
          <version>2.5.13</version>
        </dependency>
      </dependencies>
      <build>
        <finalName>${project.artifactId}</finalName>
        <testSourceDirectory>src/test/java</testSourceDirectory>
        <sourceDirectory>src/main/java</sourceDirectory>
        <!-- 处理无法加载资源配置文件 -->
        <resources>
          <resource>
            <directory>src/main/java</directory>
            <includes>
              <include>**/*.xml</include>
            </includes>
          </resource>
          <resource>
            <directory>src/main/resources</directory>
            <includes>
              <include>**/*.xml</include>
              <include>**/*.properties</include>
            </includes>
          </resource>
        </resources>
      </build>
    </project>

    在src/main/resources/struts.xml  建立struts核心配置文件 配置如下:

    <?xml version="1.0" encoding="UTF-8" ?>
    <!DOCTYPE struts PUBLIC
            "-//Apache Software Foundation//DTD Struts Configuration 2.5//EN"
            "http://struts.apache.org/dtds/struts-2.5.dtd">
    <struts>
        <constant name="struts.i18n.reload" value="true"/>
        <constant name="struts.enable.DynamicMethodInvocation" value="true"/>
        <constant name="struts.devMode" value="true"/>
        <constant name="struts.configuration.xml.reload" value="true"/>
        <constant name="struts.custom.i18n.resources" value="res"/>
        <constant name="struts.action.extension" value="action,,do"/>
        <package name="default" namespace="/" extends="struts-default">
            <action name="login">
                <result>/login.jsp</result>
            </action>
            <action name="test" class="com.ssz.util.Test" method="tt"></action>
            <action name="ts" class="com.ssz.util.Test" method="aa"></action>
            <action name="login" class="com.ssz.util.User">
                <result>/welcome.jsp</result>
                <result name="fail">/error.jsp</result>
            </action>
        </package>
    </struts>

    编写控制器测试类Test.java

    package com.ssz.util;
    
    import lombok.Data;
    import org.apache.struts2.ServletActionContext;
    
    import javax.servlet.http.HttpServletResponse;
    import java.io.IOException;
    import java.io.PrintWriter;
    
    @Data
    public class Test {
        private String name;
        public void tt(){
            System.out.println("Hello-World struts"+name);
        }
        public void aa() throws IOException {
            HttpServletResponse res= ServletActionContext.getResponse();
            res.setCharacterEncoding("utf-8");
            res.setContentType("text/html,charset=utf-8");
            res.setCharacterEncoding("utf-8");
            res.setContentType("text/html;charset=utf-8");
            PrintWriter out = res.getWriter();
            out.print("<h3>fqszywz</h3>"+name);
            out.flush();
            out.close();
        }
    }

    User.java 登录验证

    package com.ssz.util;
    
    import com.sun.net.httpserver.Authenticator;
    import lombok.Data;
    
    @Data
    public class User {
        private String name;
        private String password;
        public String execute(){
            String result="success";
            if(!getName().equals("admin")||!getPassword().equals("123")){
                result ="fail";
            }
            return result;
        }
    }

    编写index.jsp 文件内容,进行测试

    <%@ taglib prefix="s" uri="/struts-tags" %>
    <%@ page language="java" pageEncoding="utf-8" %>
    <!DOCTYPE html>
    <html lang="zh-CN">
    <head>
        <meta charset="UTF-8">
        <meta name="viewport"
              content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
        <meta http-equiv="X-UA-Compatible" content="ie=edge">
        <title></title>
    </head>
    <body>
    <form action="login" method="post">
        <table>
            <tr>
                <td>账户</td>
                <td><input type="name" name="name" autofocus></td>
            </tr>
            <tr>
                <td>密码</td>
                <td><input type="password"  name="password"></td>
            </tr>
            <tr>
                <td><input type="submit" value="登陆"></td>
            </tr>
        </table>
    </form>
    <hr>
    <s:iterator begin="1" var="vv" end="10">
        <h4>${vv}</h4>
    </s:iterator>
    <h3><a href="test"/>test</h3>
    <h3><a href="ts"/>ts</h3>
    </body>
    </html>

    登陆成功跳转welcome.jsp页面

    <%@ page language="java" pageEncoding="UTF-8" %>
    <!DOCTYPE html>
    <html lang="zh-CN">
    <head>
        <meta charset="UTF-8">
        <title>FQSZYWZ</title>
    </head>
    <body>
    <h3>会员登陆</h3>
    <h3>${name}登陆成功</h3>
    </body>
    </html>

    登陆失败页面error.jsp页面

    <%@ page language="java" pageEncoding="UTF-8" %>
    <!DOCTYPE html>
    <html lang="zh-CN">
    <head>
        <meta charset="UTF-8">
        <title>FQSZYWZ</title>
    </head>
    <body>
    <h3>会员登陆</h3>
    <h3>登陆失败,请检查用户名密码重新登录</h3>
    <h4><a href="login.jsp"/> </h4>
    </body>
    </html>
  • 相关阅读:
    js正则表达式中的问号使用技巧总结
    380. Insert Delete GetRandom O(1)
    34. Find First and Last Position of Element in Sorted Array
    162. Find Peak Element
    220. Contains Duplicate III
    269. Alien Dictionary
    18. 4Sum
    15. 3Sum
    224. Basic Calculator
    227. Basic Calculator II
  • 原文地址:https://www.cnblogs.com/fqszywz/p/7517860.html
Copyright © 2011-2022 走看看