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基于注释的Spring Security实战

發布時間：2025/3/20 javascript 16 豆豆

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一、準備工作

預準備的工具及軟件有：

1.?Eclipse?IDE：我使用Eclipse?JEE?3.7版，即eclipse-jee-indigo-SR2-win32-x86_64.zip

2.?JDK?7：我使用JDK?7u4版，即jdk-7u4-windows-x64.exe

3.?Spring?Framework：我使用Spring?Framework?3.1.2版，即spring-framework-3.1.2.RELEASE-with-docs.zip

4.?Spring?Security：我使用Spring?Security?3.1.2版，即spring-security-3.1.2.RELEASE-dist

5.?其它JAR包：jstl-1.2.jar，commons-logging-1.1.1.jar，cglib-nodep-2.2.jar

6.?Tomcat應用服務器：我使用Tomcat?7.0.29版，即apache-tomcat-7.0.29-windows-x64.zip

說明：

1.?Eclipse?IDE和JDK?7的版本可以更高一些，不影響開發和調試。

2.?Eclipse一定要下載JEE版。

3.?Eclipse、JDK和Tomcat的安裝過程省略。

4.?我的操作系統是64位版本，故開發環境對應的工具都是下載64位的安裝包。

二、新建項目

在Eclipse環境下新建Dynamic?Web?Project。

項目名為：SpringSecurityDemo，

Target?runtime選擇New?Runtime，然后選擇Apache?Tomcat?v7.0，并設置好Tomcat的安裝目錄。

連續點擊兩次Next，在“Generate?web.xml?deployment?descriptor”處打勾選擇，并點擊Finish。

三、添加庫文件

把下列JAR文件添加到項目的WebContent\WEB-INF\lib目錄下。

四、業務層開發

1.?在項目src處，新建com.ch.configuration包，并新建WebConfig.java類，內容如下：

package?com.ch.configuration;??

import?org.springframework.context.annotation.Bean;??

import?org.springframework.context.annotation.ComponentScan;??

import?org.springframework.context.annotation.Configuration;??

import?org.springframework.context.annotation.ImportResource;??

import?org.springframework.web.servlet.ViewResolver;??

import?org.springframework.web.servlet.config.annotation.EnableWebMvc;??

import?org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;??

import?org.springframework.web.servlet.view.InternalResourceViewResolver;??

@EnableWebMvc??

@Configuration??

@ComponentScan(basePackages?=?"com.jverstry")??

@ImportResource("/WEB-INF/MyServlet-security.xml")??

public?class?WebConfig?extends?WebMvcConfigurerAdapter?{??

????@Bean??

????public?ViewResolver?getViewResolver()?{??

????????InternalResourceViewResolver?resolver?=?new?InternalResourceViewResolver();??

????????resolver.setPrefix("WEB-INF/pages/");??

????????resolver.setSuffix(".jsp");??

????????return?resolver;??

????}??

}??

2.?新建com.ch.configuration.controller包，并新建MyController.java類，內容如下：

package?com.ch.configuration.controller;??

import?com.ch.configuration.service.MyService;??

import?org.springframework.beans.factory.annotation.Autowired;??

import?org.springframework.stereotype.Controller;??

import?org.springframework.ui.Model;??

import?org.springframework.web.bind.annotation.RequestMapping;??

@Controller??

public?class?MyController?{??

????private?MyService?myService;??

????@Autowired??

????public?void?setMyService(MyService?myService)?{??

????????this.myService?=?myService;??

????}??

????@RequestMapping(value?=?"/")??

????public?String?home()?{??

????????return?"index";??

????}??

????@RequestMapping(value?=?"/getTime")??

????public?String?helloWorld(Model?model)?{??

????????model.addAttribute("TimeIs",?myService.getCurrentTimeInMilliseconds());??

????????return?"getTime";??

????}??

}??

3.?新建com.ch.configuration.service包，并新建MyService.java接口類，內容如下：

package?com.ch.configuration.service;??

public?interface?MyService?{??

????long?getCurrentTimeInMilliseconds();??

}??

4.?在com.ch.configuration.service包新建MyServiceImpl.java類，內容如下：

package?com.ch.configuration.service;??

public?class?MyServiceImpl?implements?MyService?{??

????@Override??

????public?long?getCurrentTimeInMilliseconds()?{??

????????return?System.currentTimeMillis();??

????}??

}??

5.?在com.ch.configuration.service包新建MyServicesConfiguration.java類，內容如下：

package com.ch.configuration.service; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; @Configuration public class MyServicesConfiguration { private MyService myService = new MyServiceImpl(); @Bean public MyService getMyService() { return myService; } }

五、前臺頁面層開發

1.?在WebContent\WEB-INF目錄新建pages文件夾，接著在pages目錄下新建getTime.jsp文件，內容如下：

<%@?page?language="java"?contentType="text/html;?charset=UTF-8"??

????pageEncoding="UTF-8"%>??

<%@?taglib?prefix="c"?uri="http://java.sun.com/jsp/jstl/core"?%>??

>??

<html>??

<head>??

<title>Get?Time?!!!title>??

head>??

<body>??

????The?time?in?milliseconds?is:??

????<c:out?value="${TimeIs}"?/>??

????!??

body>??

html>??

2.?在pages目錄下新建index.jsp文件，內容如下：

<%@?page?language="java"?contentType="text/html;?charset=UTF-8"??

????pageEncoding="UTF-8"%>??

>??

<html>??

<head>??

<title>Welcome?!!!title>??

head>??

<body>??

????<h1>Welcome?To?Spring?MVC?With?Annotations?!!!h1>??

????<h1>(with?login...)h1>??

body>??

html>??

3.?修改WEB-INF下的web.xml文件，內容如下：

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

<web-app?xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"??

????xmlns="http://java.sun.com/xml/ns/javaee"?xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"??

????xsi:schemaLocation="http://java.sun.com/xml/ns/javaee?http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"??

????id="WebApp_ID"?version="3.0">??

????<display-name>SpringSecurityDemodisplay-name>??

????<context-param>??

????????<param-name>contextClassparam-name>??

????????<param-value>org.springframework.web.context.support.AnnotationConfigWebApplicationContextparam-value>??

????context-param>??

????<context-param>??

????????<param-name>contextConfigLocationparam-name>??

????????<param-value>com.ch.configurationparam-value>??

????context-param>??

????<filter>??

????????<filter-name>springSecurityFilterChainfilter-name>??

????????<filter-class>org.springframework.web.filter.DelegatingFilterProxyfilter-class>??

????filter>??

????<filter-mapping>??

????????<filter-name>springSecurityFilterChainfilter-name>??

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

????filter-mapping>??

????<listener>??

????????<listener-class>org.springframework.web.context.ContextLoaderListenerlistener-class>??

????listener>??

????<servlet>??

????????<servlet-name>MyServletservlet-name>??

????????<servlet-class>org.springframework.web.servlet.DispatcherServletservlet-class>??

????????<init-param>??

????????????<param-name>contextConfigLocationparam-name>??

????????????<param-value>param-value>??

????????init-param>??

????????<load-on-startup>1load-on-startup>??

????servlet>??

????<servlet-mapping>??

????????<servlet-name>MyServletservlet-name>??

????????<url-pattern>/url-pattern>??

????servlet-mapping>??

????<welcome-file-list>??

????????<welcome-file>welcome-file>??

????welcome-file-list>??

web-app>??

4.?在WEB-INF下新建MyServlet-security.xml文件，內容如下：

<beans:beans?xmlns="http://www.springframework.org/schema/security"??

????xmlns:beans="http://www.springframework.org/schema/beans"?xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"??

????xsi:schemaLocation="http://www.springframework.org/schema/beans??

????http://www.springframework.org/schema/beans/spring-beans-3.0.xsd??

????http://www.springframework.org/schema/security??

????http://www.springframework.org/schema/security/spring-security-3.1.xsd">??

????<http?auto-config="true">??

????????<intercept-url?pattern="/*"?access="ROLE_USER"?/>??

????http>??

????<authentication-manager?alias="authenticationManager">??

????????<authentication-provider>??

????????????<user-service>??

????????????????<user?authorities="ROLE_USER"?name="guest"?password="guest"?/>??

????????????user-service>??

????????authentication-provider>??

????authentication-manager>??

beans:beans>??

至此，Demo項目的開發已經完成。項目的整體結構圖如圖所示：

六、部署和運行

1.?在Eclipse選擇項目SpringSecurityDemo，右鍵選擇“Run?As”，再選擇“Run?on?Server”，選擇Apache?Tomcat?v7.0，Eclipse?IDE自動完成部署并運行。

在瀏覽器上輸入地址：http://localhost:8080/SpringSecurityDemo/

顯示如下：

注：地址自動被重定向到http://localhost:8080/SpringSecurityDemo/spring_security_login

User/Password輸入guest/guest，顯示：

如果輸入錯誤，顯示：

OK!本文就到這里，對于Spring的注釋，可以參考官方文檔加以理解。

轉載于:https://www.cnblogs.com/jokerjason/p/6000176.html

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