Shiro密码加密加盐

一、Shiro配置添加：

package com.how2java.tmall.config;
 
import org.apache.shiro.authc.credential.HashedCredentialsMatcher;
import org.apache.shiro.mgt.SecurityManager;
import org.apache.shiro.spring.LifecycleBeanPostProcessor;
import org.apache.shiro.spring.security.interceptor.AuthorizationAttributeSourceAdvisor;
import org.apache.shiro.spring.web.ShiroFilterFactoryBean;
import org.apache.shiro.web.mgt.DefaultWebSecurityManager;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
 
import com.how2java.tmall.realm.JPARealm;
 
@Configuration
public class ShiroConfiguration {
    @Bean
    public ShiroFilterFactoryBean shirFilter(SecurityManager securityManager){
        ShiroFilterFactoryBean shiroFilterFactoryBean  = new ShiroFilterFactoryBean();
        shiroFilterFactoryBean.setSecurityManager(securityManager);
        return shiroFilterFactoryBean;
    }
     
    @Bean
    public SecurityManager securityManager(){
        DefaultWebSecurityManager securityManager =  new DefaultWebSecurityManager();
        securityManager.setRealm(getJPARealm());
        return securityManager;
    }
 
    @Bean
    public JPARealm getJPARealm(){
        JPARealm myShiroRealm = new JPARealm();
        myShiroRealm.setCredentialsMatcher(hashedCredentialsMatcher());
        return myShiroRealm;
    }
    
    //密码加密后的匹配机制设置， 若不设置， 则无法解析加密后的密码了
    @Bean
    public HashedCredentialsMatcher hashedCredentialsMatcher(){
        HashedCredentialsMatcher hashedCredentialsMatcher = new HashedCredentialsMatcher();
        //加密方式 采取 md5 方式
        hashedCredentialsMatcher.setHashAlgorithmName("md5");
        //加密次数 加密2次
        hashedCredentialsMatcher.setHashIterations(2);
        return hashedCredentialsMatcher;
    }
}

注：不仅要添加解析密码加密的配置类， 还要在 JPARealm 对象 myShiroRealm 中设置 ：myShiroRealm.setCredentialsMatcher(hashedCredentialsMatcher());

二、 登陆调用验证方法时加上盐值（否则缺少盐值则无法解析加密密码了）：

package com.how2java.tmall.realm;

import org.apache.shiro.authc.AuthenticationException;
import org.apache.shiro.authc.AuthenticationInfo;
import org.apache.shiro.authc.AuthenticationToken;
import org.apache.shiro.authc.SimpleAuthenticationInfo;
import org.apache.shiro.authc.UsernamePasswordToken;
import org.apache.shiro.authz.AuthorizationInfo;
import org.apache.shiro.authz.SimpleAuthorizationInfo;
import org.apache.shiro.realm.AuthorizingRealm;
import org.apache.shiro.subject.PrincipalCollection;
import org.apache.shiro.util.ByteSource;
import org.springframework.beans.factory.annotation.Autowired;

import com.how2java.tmall.pojo.User;
import com.how2java.tmall.service.UserService;

public class JPARealm extends AuthorizingRealm{
	
	@Autowired
	private UserService userService;
	
	//授权
	@Override
	protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principals) {
		SimpleAuthorizationInfo s = new SimpleAuthorizationInfo();
		return s;
	}
	
	//验证
	@Override
	protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken token) throws AuthenticationException {
		UsernamePasswordToken upt = (UsernamePasswordToken) token;
		String userName = upt.getUsername();
		User user = userService.getByName(userName);
		String dBpassword = user.getPassword();
		String salt = user.getSalt();
		
		return new SimpleAuthenticationInfo(userName/*携带的信息*/, dBpassword/*数据库中的密码， 会自动与登录的密码比较*/, ByteSource.Util.bytes(salt)/*盐值*/, getName());
	}

}

三、 注册时的密码加密：

	@PostMapping("foreregister")
	public Object register(@RequestBody User user){
		String name = user.getName();
		String password = user.getPassword();
		//对用户注册的昵称进行转义，避免SQL注入攻击
		name = HtmlUtils.htmlEscape(name);
		user.setName(name);
		
		boolean exit = userService.IsExit(name);
		if(exit){
			String message = "用户名已存在，请使用其他用户名";
			return Result.fail(message);
		}
		
		//盐值
		String salt = new SecureRandomNumberGenerator().nextBytes().toString();
		//加密次数
		int times = 2;
		//加密方式
		String algorithmName = "md5";
		//初始化加密密码
		String encodedPassword = new SimpleHash(algorithmName/*加密方式*/, password, salt, times).toString();
	
		user.setSalt(salt);
		user.setPassword(encodedPassword);
		userService.add(user);
		
		return Result.success();
	}