代码

代码库/mall-admin/src/main/java/com/sock/mall/component/JwtAuthenticationTokenFilter.java

@@ -0,0 +1,61 @@
+package com.macro.mall.component;
+
+import com.macro.mall.util.JwtTokenUtil;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
+import org.springframework.security.core.context.SecurityContextHolder;
+import org.springframework.security.core.userdetails.UserDetails;
+import org.springframework.security.core.userdetails.UserDetailsService;
+import org.springframework.security.web.authentication.WebAuthenticationDetailsSource;
+import org.springframework.stereotype.Component;
+import org.springframework.web.filter.OncePerRequestFilter;
+
+import javax.servlet.FilterChain;
+import javax.servlet.ServletException;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import java.io.IOException;
+
+/**
+ * JWT登录授权过滤器
+ * Created by macro on 2018/4/26.
+ */
+public class JwtAuthenticationTokenFilter extends OncePerRequestFilter {
+    private static final Logger LOGGER = LoggerFactory.getLogger(JwtAuthenticationTokenFilter.class);
+   /*声明Log4jUtils类，处理Logger的操作*/
+    @Autowired
+    private UserDetailsService userDetailsService;//用户详细信息服务
+    @Autowired
+    private JwtTokenUtil jwtTokenUtil;//jwt登录授权
+    @Value("${jwt.tokenHeader}")
+    private String tokenHeader;//登录表头
+    @Value("${jwt.tokenHead}")
+    private String tokenHead;
+
+    @Override
+    protected void doFilterInternal(HttpServletRequest request,
+                                    HttpServletResponse response,
+                                    FilterChain chain) throws ServletException, IOException {
+    	 /*Filter方法，实现过滤功能*/
+        String authHeader = request.getHeader(this.tokenHeader);
+        if (authHeader != null && authHeader.startsWith(this.tokenHead)) {
+            String authToken = authHeader.substring(this.tokenHead.length());// The part after "Bearer "
+            String username = jwtTokenUtil.getUserNameFromToken(authToken);
+            LOGGER.info("checking username:{}", username);
+            if (username != null && SecurityContextHolder.getContext().getAuthentication() == null) {
+                UserDetails userDetails = this.userDetailsService.loadUserByUsername(username);
+                if (jwtTokenUtil.validateToken(authToken, userDetails)) {
+                	/*将验证信息放入SecurityContextHolder中，UsernamePasswordAuthenticationToken是Security验证账号密码的工具类*/
+                    UsernamePasswordAuthenticationToken authentication = new UsernamePasswordAuthenticationToken(userDetails, null, userDetails.getAuthorities());
+                    authentication.setDetails(new WebAuthenticationDetailsSource().buildDetails(request));
+                    LOGGER.info("authenticated user:{}", username);
+                    SecurityContextHolder.getContext().setAuthentication(authentication);
+                }
+            }
+        }
+        chain.doFilter(request, response);//将请求转发给过滤器链上下一个对象
+    }
+}