shiro拦截逻辑、springboot集成逻辑
1.shiro拦截入口就是shiro拦截器。
在springmvc，的时候，shiro的拦截逻辑很简单，就是在web.xml配置相应的shiro拦截器，对请求进行拦截验证是否，
2.springboot中，其实也一样，通过配置注解@Configuration，将ShiroFilterFactoryBean和DefaultWebSecurityManager
注入到spring容器中。其中ShiroFilterFactoryBean这个类中将
JwtFilter添加进去，代码中粉色。DefaultWebSecurityManager，
@Bean("shiroFilter")
public ShiroFilterFactoryBean shiroFilter(SecurityManager securityManager) {
ShiroFilterFactoryBean shiroFilterFactoryBean = new ShiroFilterFactoryBean();
shiroFilterFactoryBean.setSecurityManager(securityManager);
// 拦截器
Map<String, String> filterChainDefinitionMap = new LinkedHashMap<String, String>();
if(oConvertUtils.isNotEmpty(excludeUrls)){
String[] permissionUrl = excludeUrls.split(",");
for(String url : permissionUrl){
filterChainDefinitionMap.put(url,"anon");
}
}
//首页排除
filterChainDefinitionMap.put("/app/userIndex/**", "anon"); //首页接口
filterChainDefinitionMap.put("/app/notify/**", "anon"); //首页接口
filterChainDefinitionMap.put("/app/notifyAliPay/**", "anon"); //首页接口
//websocket排除
filterChainDefinitionMap.put("/websocket/**", "anon");
filterChainDefinitionMap.put("/newsWebsocket/**", "anon");
// 添加自己的过滤器并且取名为jwt
Map<String, Filter> filterMap = new HashMap<String, Filter>(1);
//如果cloudServer为空 则说明是单体 需要加载跨域配置
Object cloudServer = env.getProperty(CommonConstant.CLOUD_SERVER_KEY);
filterMap.put("jwt", new JwtFilter(cloudServer==null));
shiroFilterFactoryBean.setFilters(filterMap);
// <!-- 过滤链定义，从上向下顺序执行，一般将/**放在最为下边
filterChainDefinitionMap.put("/**", "jwt");
// 未授权界面返回JSON
shiroFilterFactoryBean.setUnauthorizedUrl("/sys/common/403");
shiroFilterFactoryBean.setLoginUrl("/sys/common/403");
shiroFilterFactoryBean.setFilterChainDefinitionMap(filterChainDefinitionMap);
return shiroFilterFactoryBean;
}
@Bean("securityManager")
public DefaultWebSecurityManager securityManager(ShiroRealm myRealm) {
DefaultWebSecurityManager securityManager = new DefaultWebSecurityManager();
securityManager.setRealm(myRealm);
/*
* 关闭shiro自带的session，详情见文档
* http://shiro.apache.org/session-management.html#SessionManagement-
* StatelessApplications%28Sessionless%29
*/
DefaultSubjectDAO subjectDAO = new DefaultSubjectDAO();
DefaultSessionStorageEvaluator defaultSessionStorageEvaluator = new DefaultSessionStorageEvaluator();
defaultSessionStorageEvaluator.setSessionStorageEnabled(false);
subjectDAO.setSessionStorageEvaluator(defaultSessionStorageEvaluator);
securityManager.setSubjectDAO(subjectDAO);
//自定义缓存实现,使用redis
securityManager.setCacheManager(redisCacheManager());
return securityManager;
}
JwtFilter类
package org.jeecg.config.shiro.filters;
import com.alibaba.fastjson.JSONObject;
import lombok.extern.slf4j.Slf4j;
import org.apache.shiro.authc.AuthenticationException;
import org.apache.shiro.web.filter.authc.BasicHttpAuthenticationFilter;
import org.jeecg.common.constant.CommonConstant;
import org.jeecg.config.mybatis.TenantContext;
import org.jeecg.config.shiro.JwtToken;
import org.springframework.http.HttpStatus;
import org.springframework.web.bind.annotation.RequestMethod;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.OutputStream;
import java.nio.charset.StandardCharsets;
import java.util.Date;
/**
* @Description: 鉴权登录拦截器
* @Author: Scott
* @Date: 2018/10/7
**/
@Slf4j
public class JwtFilter extends BasicHttpAuthenticationFilter {
private boolean allowOrigin = true;
public JwtFilter(){}
public JwtFilter(boolean allowOrigin){
this.allowOrigin = allowOrigin;
}
/**
* 执行登录认证
*
* @param request
* @param response
* @param mappedValue
* @return
*/
@Override
protected boolean isAccessAllowed(ServletRequest request, ServletResponse response, Object mappedValue) {
try {
executeLogin(request, response);
return true;
} catch (Exception e) {
throw new AuthenticationException("Token失效，请重新登录", e);
}
}
/**
*
*/
@Override
protected boolean executeLogin(ServletRequest request, ServletResponse response) throws Exception {
HttpServletRequest httpServletRequest = (HttpServletRequest) request;
String token = httpServletRequest.getHeader(CommonConstant.X_ACCESS_TOKEN);
JwtToken jwtToken = new JwtToken(token);
// 提交给realm进行登入，如果错误他会抛出异常并被捕获
getSubject(request, response).login(jwtToken);
// 如果没有抛出异常则代表登入成功，返回true
return true;
}
/**
* 对跨域提供支持
*/
@Override
protected boolean preHandle(ServletRequest request, ServletResponse response) throws Exception {
HttpServletRequest httpServletRequest = (HttpServletRequest) request;
HttpServletResponse httpServletResponse = (HttpServletResponse) response;
if(allowOrigin){
httpServletResponse.setHeader("Access-control-Allow-Origin", httpServletRequest.getHeader("Origin"));
httpServletResponse.setHeader("Access-Control-Allow-Methods", "GET,POST,OPTIONS,PUT,DELETE");
httpServletResponse.setHeader("Access-Control-Allow-Headers", httpServletRequest.getHeader("Access-Control-Request-Headers"));
//update-begin-author:scott date:20200907 for:issues/I1TAAP 前后端分离，shiro过滤器配置引起的跨域问题
// 是否允许发送Cookie，默认Cookie不包括在CORS请求之中。设为true时，表示服务器允许Cookie包含在请求中。
httpServletResponse.setHeader("Access-Control-Allow-Credentials", "true");
//update-end-author:scott date:20200907 for:issues/I1TAAP 前后端分离，shiro过滤器配置引起的跨域问题
}
// 跨域时会首先发送一个option请求，这里我们给option请求直接返回正常状态
if (httpServletRequest.getMethod().equals(RequestMethod.OPTIONS.name())) {
httpServletResponse.setStatus(HttpStatus.OK.value());
return false;
}
//update-begin-author:taoyan date:20200708 for:多租户用到
String tenant_id = httpServletRequest.getHeader(CommonConstant.TENANT_ID);
TenantContext.setTenant(tenant_id);
//update-end-author:taoyan date:20200708 for:多租户用到
try{
return super.preHandle(request, response);
}catch (Exception e){
httpServletResponse.setStatus(HttpStatus.OK.value());
JSONObject data = new JSONObject();
data.put("code", 403);
data.put("message", "Token失效，请重新登录");
data.put("success", false);
data.put("now", new Date().getTime());
/**获取OutputStream输出流*/
OutputStream outputStream = response.getOutputStream();
/**设置json返回格式*/
((HttpServletResponse) response).setHeader("content-type", "application/json");
/**将字符转换成字节数组，指定以UTF-8编码进行转换*/
byte[] dataByteArr = data.toJSONString().getBytes(StandardCharsets.UTF_8);
/**使用OutputStream流向客户端输出字节数组*/
outputStream.write(dataByteArr);
return false;
}
//return super.preHandle(request, response);
}
}
