request filter bug fix

src/main/java/cn/quantgroup/xyqb/filter/RequestFilter.java

@@ -45,7 +45,7 @@ public class RequestFilter implements Filter {
         HttpServletRequest request = (HttpServletRequest) servletRequest;
         HttpServletResponse response = (HttpServletResponse) servletResponse;
         String requestPath = getRequestPath(request);
-        SessionStruct sessionStruct = null;
+        SessionStruct sessionStruct;
         if(!isMatch(requestPath)){
             //获取session信息,如果没有获取到session信息则返回错误信息
             sessionStruct = XyqbSessionContextHolder.getXSession();
@@ -57,16 +57,18 @@ public class RequestFilter implements Filter {
                 writer.close();
                 return;
             }
+            try {
                 filterChain.doFilter(request, response);
+            } finally {
                 sessionStruct = XyqbSessionContextHolder.getXSession();
-            if (sessionStruct == null) {
-                return;
-            }
+                if (sessionStruct != null) {
                     try {
                         sessionService.persistSession(sessionStruct.getSid(), sessionStruct.getValues());
                     } finally {
                         XyqbSessionContextHolder.releaseSession();
                     }
+                }
+            }
         }else {
             filterChain.doFilter(request, response);
         }