Fix the parsing issue in large post request for transport-simple-http

.gitignore

@@ -4,6 +4,9 @@
 out
 gen
 
+# Visual Studio Code
+.history/
+
 # Maven
 target/
 pom.xml.tag

sentinel-transport/sentinel-transport-simple-http/pom.xml

@@ -17,5 +17,10 @@
             <artifactId>sentinel-transport-common</artifactId>
             <version>${project.version}</version>
         </dependency>
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <scope>test</scope>
+        </dependency>
     </dependencies>
 </project>

sentinel-transport/sentinel-transport-simple-http/src/main/java/com/alibaba/csp/sentinel/transport/command/exception/RequestException.java

@@ -0,0 +1,43 @@
+/*
+ * Copyright 1999-2018 Alibaba Group Holding Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.alibaba.csp.sentinel.transport.command.exception;
+
+import com.alibaba.csp.sentinel.transport.command.http.StatusCode;
+
+/**
+ * Represent exception with status code processing a request
+ * 
+ * @author jason
+ *
+ */
+public class RequestException extends Exception {
+    private static final long serialVersionUID = 1L;
+
+    private StatusCode statusCode = StatusCode.BAD_REQUEST;
+
+    public RequestException() {
+        super();
+    }
+
+    public RequestException(StatusCode statusCode, String msg) {
+        super(msg);
+        this.statusCode = statusCode;
+    }
+
+    public StatusCode getStatusCode() {
+        return statusCode;
+    }
+}