spring boot+freemarker+spring security标签权限判断

spring boot+freemarker+spring security标签权限判断

SpringBoot+SpringSecurity+Freemarker项目中在页面上使用security标签控制按钮显示隐藏达到对按钮级权限控制还是比较方便的，如下配置即可。

1、引入依赖

<dependency>			
<groupId>org.springframework.security</groupId>			
<artifactId>spring-security-taglibs</artifactId>		
</dependency> 		

<dependency>			
<groupId>javax.servlet.jsp</groupId>			
<artifactId>jsp-api</artifactId>			
<version>2.2.1-b03</version>		
</dependency>

　　

2、依赖引入后到spring-security-taglibs包中META-INF下security.tld复制出来，放到/resources/下，最后建一个目录tags，如下：

3、建一个配置类：ClassPathTldsLoader.java

import java.util.Arrays;
import java.util.List;

import javax.annotation.PostConstruct;

import org.apache.commons.lang.ArrayUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.servlet.view.freemarker.FreeMarkerConfigurer;

public class ClassPathTldsLoader {

	  /**
     * 指定路径
     */
    private static final String SECURITY_TLD = "/security.tld";

    final private List<String> classPathTlds;

    public ClassPathTldsLoader(String... classPathTlds) {
        super();
        if(ArrayUtils.isEmpty(classPathTlds)){
            this.classPathTlds = Arrays.asList(SECURITY_TLD);
        }else{
            this.classPathTlds = Arrays.asList(classPathTlds);
        }
    }
    @Autowired
    private FreeMarkerConfigurer freeMarkerConfigurer;

    @PostConstruct
    public void loadClassPathTlds() {
        freeMarkerConfigurer.getTaglibFactory().setClasspathTlds(classPathTlds);
    }
}

　　

4.然后在网站配置文件SecurityConfig.java中加入bean

/**
	 * 自动加载security-taglibs
	 * @return
	 */
	    @Bean
	    @ConditionalOnMissingBean(ClassPathTldsLoader.class)
	    public ClassPathTldsLoader classPathTldsLoader(){
	        return new ClassPathTldsLoader();
	    }

　　

参考：

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.context.annotation.Bean;
import org.springframework.security.authentication.AuthenticationProvider;
import org.springframework.security.authentication.dao.DaoAuthenticationProvider;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.method.configuration.EnableGlobalMethodSecurity;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.security.crypto.password.PasswordEncoder;

@EnableWebSecurity
//启用全局post安全方法设置
@EnableGlobalMethodSecurity(prePostEnabled=true)
public class SecurityConfig extends WebSecurityConfigurerAdapter {

	private static final String key = "muyang.my";
	
	@Autowired
	private UserDetailsService userDetailsService;
	
	
	@Bean
	public PasswordEncoder passwordEncoder()
	{
		return new BCryptPasswordEncoder();
		
	}
	
	@Bean
	public AuthenticationProvider authenticationProvider() {
		DaoAuthenticationProvider authenticationProvider = new DaoAuthenticationProvider();
		authenticationProvider.setUserDetailsService(userDetailsService);
		//密码加密方式
		authenticationProvider.setPasswordEncoder(passwordEncoder());
		return authenticationProvider;
		
	}
	
	@Override
	protected void configure(HttpSecurity http) throws Exception {
		// TODO Auto-generated method stub
		//super.configure(http);
		//关闭csrf验证:跨站攻击
		//http.csrf().disable();
		//权限设置
		http.authorizeRequests()     //定义那些url需要保护，哪些不需要保护
		.antMatchers("/static/**").permitAll()  //都可以访问
		.antMatchers("/user/**").hasRole("ADMIN") //需要登陆才能访问
		.and()		
		.headers().frameOptions().disable() //解决js跨站把x-frame-options disable即可
		.and()
		.formLogin() //基于FORM表单登陆验证
		.loginPage("/login").failureUrl("/login-error") //自定义登陆界面//自定义登陆错误页面
		.and().rememberMe().key(key) //记住我
		.and().exceptionHandling().accessDeniedPage("/403");  // 处理异常，拒绝访问就重定向到 403 页面
	}

	
	
	/**
	 * 认证信息管理
	 * @param auth
	 * @throws Exception
	 */
	@Autowired
	public  void configureGlobal(AuthenticationManagerBuilder  auth) throws Exception {
		// TODO Auto-generated method stub
		//super.configure(auth);
		//auth.inMemoryAuthentication().withUser("admin").password("123456").roles("ADMIN");
		auth.userDetailsService(userDetailsService);
		auth.authenticationProvider(authenticationProvider());
	}

	
	/**
	 * 自动加载security-taglibs
	 * @return
	 */
	    @Bean
	    @ConditionalOnMissingBean(ClassPathTldsLoader.class)
	    public ClassPathTldsLoader classPathTldsLoader(){
	        return new ClassPathTldsLoader();
	    }
	
	
}

　　

5、在freemarker页面顶部引入标签

<#assign security=JspTaglibs["http://www.springframework.org/security/tags"] />

　　

使用标签

<@security.authorize access="hasRole('ADMIN')">
222
</@security.authorize>

　　

6.或者

<%@taglib uri="http://www.springframework.org/security/tags" prefix="sec"%>
<sec:authorize access="isAuthenticated()">
    <% response.sendRedirect("main"); %>
</sec:authorize>