srcmini基于表单的身份验证是一种通过登录表单完成用户身份验证的方式。该表格是内置的, 由Spring安全框架提供。
HttpSecurity类提供了一个方法formLogin(), 该方法负责呈现登录表单并验证用户凭据。
在本教程中, 我们将创建一个实现基于表单的身份验证的示例。让我们开始这个例子。
创建一个Maven项目
首先通过提供项目详细信息来创建一个Maven项目。
该项目最初看起来像这样：
Spring安全配置
使用以下Java文件在应用程序中配置spring安全性。创建一个包com.srcmini并将所有文件放入其中。
// AppConfig.java
package com.srcmini;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.view.InternalResourceViewResolver;
import org.springframework.web.servlet.view.JstlView;
@EnableWebMvc
@Configuration
@ComponentScan({ "com.srcmini.controller.*" })
public class AppConfig {
@Bean
public InternalResourceViewResolver viewResolver() {
InternalResourceViewResolver viewResolver
= new InternalResourceViewResolver();
//viewResolver.setViewClass(JstlView.class);
viewResolver.setPrefix("/WEB-INF/views/");
viewResolver.setSuffix(".jsp");
return viewResolver;
}
}// MvcWebApplicationInitializer.java
package com.srcmini;
import org.springframework.web.servlet.support.AbstractAnnotationConfigDispatcherServletInitializer;
public class MvcWebApplicationInitializer extends
AbstractAnnotationConfigDispatcherServletInitializer {
@Override
protected Class<?>[] getRootConfigClasses() {
return new Class[] { WebSecurityConfig.class };
}
@Override
protected Class<?>[] getServletConfigClasses() {
// TODO Auto-generated method stub
return null;
}
@Override
protected String[] getServletMappings() {
return new String[] { "/" };
}
}// SecurityWebApplicationInitializer.java
package com.srcmini;
import org.springframework.security.web.context.*;
public class SecurityWebApplicationInitializer extends AbstractSecurityWebApplicationInitializer {
}// WebSecuiryConfig.java
package com.srcmini;
import org.springframework.context.annotation.*;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.*;
import org.springframework.security.core.userdetails.*;
import org.springframework.security.provisioning.InMemoryUserDetailsManager;
import org.springframework.security.web.util.matcher.AntPathRequestMatcher;
@EnableWebSecurity
@ComponentScan("com.srcmini")
public class WebSecurityConfig extends WebSecurityConfigurerAdapter {
@Bean
public UserDetailsService userDetailsService() {
InMemoryUserDetailsManager manager = new InMemoryUserDetailsManager();
manager.createUser(User.withDefaultPasswordEncoder()
.username("admin").password("admin123").roles("ADMIN").build());
return manager;
}
@Override
protected void configure(HttpSecurity http) throws Exception {
http.authorizeRequests().
antMatchers("/index", "/user", "/").permitAll()
.antMatchers("/admin").authenticated()
.and()
.formLogin() // It renders a login form
.and()
.logout()
.logoutRequestMatcher(new AntPathRequestMatcher("/logout"));
}
}控制者
创建一个控制器HomeController并将其放入com.srcmini.controller包中。它包含以下代码。
// HomeController.java
package com.srcmini.controller;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
@Controller
public class HomeController {
@RequestMapping(value="/", method=RequestMethod.GET)
public String index() {
return "index";
}
@RequestMapping(value="/admin", method=RequestMethod.GET)
public String admin() {
return "admin";
}
}观看次数
该项目包含以下两个视图(JSP页面)。将它们放入WEB-INF / views文件夹。
// index.jsp
<html>
<head>
<title>Index Page</title>
</head>
<body>
Welcome to srcmini! <br> <br>
<a href="admin">Admin login</a>
</body>
</html>// admin.jsp
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Home Page</title>
</head>
<body>
<span style="color: green;">login successful!</span>
<a href="logout">Logout</a>
<hr>
<h3>Welcome Admin</h3>
</body>
</html>项目依赖
// pom.xml
<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/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.srcmini</groupId>
<artifactId>springsecurity</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<properties>
<maven.compiler.target>1.8</maven.compiler.target>
<maven.compiler.source>1.8</maven.compiler.source>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>5.0.2.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-web</artifactId>
<version>5.0.0.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-core</artifactId>
<version>5.0.4.RELEASE</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework.security/spring-security-config -->
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-config</artifactId>
<version>5.0.4.RELEASE</version>
</dependency>
<!-- https://mvnrepository.com/artifact/javax.servlet/javax.servlet-api -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>2.6</version>
<configuration>
<failOnMissingWebXml>false</failOnMissingWebXml>
</configuration>
</plugin>
</plugins>
</build>
</project>项目结构
添加所有这些文件后, 项目结构如下所示：
运行服务器
在服务器上运行该应用程序, 然后看到它向浏览器产生以下输出。
输出
单击链接, 将呈现一个登录表单, 该表单将用于基于表单的身份验证。
验证凭据后, 它将验证用户身份并呈现到管理页面。
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