Shiro认证

<dependency>
    <groupId>org.apache.shiro</groupId>
    <artifactId>shiro-core</artifactId>
    <version>1.3.2</version>
</dependency>

<dependency>
    <groupId>org.apache.shiro</groupId>
    <artifactId>shiro-web</artifactId>
    <version>1.3.2</version>
</dependency>

<dependency>
    <groupId>org.apache.shiro</groupId>
    <artifactId>shiro-spring</artifactId>
    <version>1.3.2</version>
</dependency>

<!-- shiro过滤器定义 -->
<filter>
  <filter-name>shiroFilter</filter-name>
  <filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
  <init-param>
    <!-- 该值缺省为false,表示生命周期由SpringApplicationContext管理,设置为true则表示由ServletContainer管理 -->
    <param-name>targetFilterLifecycle</param-name>
    <param-value>true</param-value>
  </init-param>
</filter>
<filter-mapping>
  <filter-name>shiroFilter</filter-name>
  <url-pattern>/*</url-pattern>
</filter-mapping>

<select id="queryByName" resultType="com.javaxl.ssm.model.ShiroUser" parameterType="java.lang.String">
  select
  <include refid="Base_Column_List" />
  from t_shiro_user
  where userName = #{userName}
</select>

package com.cjh.service;

        import com.cjh.model.ShiroUser;

/**
 * @author
 * @site
 * @company
 * @create 2019-10-13 16:29
 */
public interface ShiroUserService {
    /**
     * 用于shiro认证
     * @param uname
     * @return
     */
    public ShiroUser queryByName(String uname);

    int insert(ShiroUser record);

}

package com.cjh.service.Impl;

import com.cjh.mapper.ShiroUserMapper;
import com.cjh.model.ShiroUser;
import com.cjh.service.ShiroUserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

/**
 * @author
 * @site
 * @company
 * @create 2019-10-13 16:31
 */
@Service("shiroUserService")
public class ShiroUserServiceImpl implements ShiroUserService {
    @Autowired
    private ShiroUserMapper shiroUserMapper;
    @Override
    public ShiroUser queryByName(String uname) {
        return shiroUserMapper.queryByName(uname);
    }

    @Override
    public int insert(ShiroUser record) {
        return shiroUserMapper.insert(record);
    }


}

package com.cjh.shiro;

import com.cjh.model.ShiroUser;
import com.cjh.service.ShiroUserService;
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.authz.AuthorizationInfo;
import org.apache.shiro.realm.AuthorizingRealm;
import org.apache.shiro.subject.PrincipalCollection;
import org.apache.shiro.util.ByteSource;

/**
 * @author
 * @site
 * @company
 * @create 2019-10-13 16:19
 * 认证过程
 * 1.数据原（ini-》数据库）
 * 2.doGetAuthenticationInfo将数据库的用户信息个shbjet主体认证
 *    2.1 需要在当前realm中调用service来验证，当前用户是否在数据库中存在
 *    2.2 盐加密
 */
public class MyRealm extends AuthorizingRealm {
    private ShiroUserService shiroUserService;

    public ShiroUserService getShiroUserService() {
        return shiroUserService;
    }

    public void setShiroUserService(ShiroUserService shiroUserService) {
        this.shiroUserService = shiroUserService;
    }

    /**
     * 授权
     * @param principals
     * @return
     */
    @Override
    protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principals) {
        return null;
    }

    /**
     * 认证
     * @param token   从jsp页面传递过来的用户名和密码组成成的一个token对象
     * @return
     * @throws AuthenticationException
     */
    @Override
    protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken token) throws AuthenticationException {
        String userName =  token.getPrincipal().toString();
        String pwd =  token.getPrincipal().toString();
        ShiroUser shiroUser = this.shiroUserService.queryByName(userName);
        AuthenticationInfo info = new SimpleAuthenticationInfo(
                shiroUser.getUsername(),
                shiroUser.getPassword(),
                ByteSource.Util.bytes(shiroUser.getSalt()),
                this.getName()
        );
        return info;
    }
}

package com.cjh.controller;

import com.cjh.model.ShiroUser;
import com.cjh.service.ShiroUserService;
import com.cjh.util.PasswordHelper;
import org.apache.shiro.SecurityUtils;
import org.apache.shiro.authc.UsernamePasswordToken;
import org.apache.shiro.subject.Subject;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * @author
 * @site
 * @company
 * @create 2019-10-13 16:57
 */
@Controller
public class ShiroUserController {
    @Autowired
    private ShiroUserService shiroUserService;

    @RequestMapping("/login")
    public  String login(HttpServletRequest request, HttpServletResponse response){
        Subject subject = SecurityUtils.getSubject();
        String uname= request.getParameter("username");
        String pwd= request.getParameter("password");
        UsernamePasswordToken token = new UsernamePasswordToken(uname,pwd);
        try {
            subject.login(token);
            return "main";
        }catch (Exception e) {
          request.setAttribute("message", "用户或密码错误！！");
            return "login";
        }
    }


    @RequestMapping("/logout")
    public  String logout(HttpServletRequest request, HttpServletResponse response) {
        Subject subject = SecurityUtils.getSubject();
        subject.logout();
        return "login";
    }

    @RequestMapping("/add")
    public String adduser (HttpServletRequest request,HttpServletResponse response){
        String uname= request.getParameter("username");
        String pwd= request.getParameter("password");
        //盐
        String salt = PasswordHelper.createSalt();
        //凭证+盐加密后得到的密码
        String pwd1 = PasswordHelper.createCredentials(pwd, salt);
        ShiroUser shiroUser = new ShiroUser();
        shiroUser.setUsername(uname);
        shiroUser.setPassword(pwd1);
        shiroUser.setSalt(salt);
        int insert = shiroUserService.insert(shiroUser);
        if (insert>0){
            request.setAttribute("message", "注册成功！！");
            return  "login";
        }else{
            request.setAttribute("message", "注册失败！！");
            return  "login";
        }



    }
}

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>Title</title>
</head>
<body>
    <h1>用户登陆</h1>
    <div style="color: red">${message}</div>
    <form action="${pageContext.request.contextPath}/login" method="post">
        帐号：<input type="text" name="username"><br>
        密码：<input type="password" name="password"><br>
        <input type="submit" value="确定">
        <input type="reset" value="重置">
        <input type="button" value="注册" onclick="location.href=‘${pageContext.request.contextPath}/add.jsp‘">
    </form>

</body>
</html>

<%--
  Created by IntelliJ IDEA.
  User: dell
  Date: 2019/10/13
  Time: 19:07
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>Title</title>
</head>
<body>
<h1>用户注册</h1>
<form action="${pageContext.request.contextPath}/add" method="post">
    帐号：<input type="text" name="username"><br>
    密码：<input type="password" name="password"><br>
    <input type="submit" value="确定">
    <input type="reset" value="重置">
</form>

</body>
</html>