add json Response

examples/CMakeLists.txt

@@ -1,3 +1,3 @@
-link_libraries(drogon trantor uuid pthread)
+link_libraries(drogon trantor uuid pthread jsoncpp)
 AUX_SOURCE_DIRECTORY(static_link_example DIR_STATIC)
 add_executable(webapp ${DIR_STATIC})

examples/static_link_example/JsonTestController.cc

@@ -0,0 +1,19 @@
+#include "JsonTestController.h"
+#include <json/json.h>
+void JsonTestController::asyncHandleHttpRequest(const HttpRequest& req,std::function<void (HttpResponse &)>callback)
+{
+    Json::Value json;
+    json["path"]="json";
+    json["name"]="json test";
+    Json::Value array;
+    for(int i=0;i<5;i++)
+    {
+        Json::Value user;
+        user["id"]=i;
+        user["name"]="none";
+        array.append(user);
+    }
+    json["rows"]=array;
+    auto resp=std::unique_ptr<HttpResponse>(HttpResponse::newHttpResponse(json));
+    callback(*resp);
+}

examples/static_link_example/JsonTestController.h

@@ -0,0 +1,15 @@
+#pragma once
+
+#include <drogon/HttpSimpleController.h>
+using namespace drogon;
+
+class JsonTestController:public drogon::HttpSimpleController<JsonTestController>
+{
+public:
+    //TestController(){}
+    virtual void asyncHandleHttpRequest(const HttpRequest& req,std::function<void (HttpResponse &)>callback)override;
+
+    PATH_LIST_BEGIN
+    PATH_ADD("/json");
+    PATH_LIST_END
+};

lib/inc/drogon/HttpResponse.h

@@ -21,6 +21,8 @@
 #pragma once
 
 #include <string>
+#include <json/json.h>
+
 using std::string;
 #define CT_APPLICATION_JSON				1
 #define CT_TEXT_PLAIN					2
@@ -98,6 +100,7 @@ namespace drogon
         virtual std::string getBody() const=0;
 
         static HttpResponse* newHttpResponse();
+        static HttpResponse* newHttpResponse(const Json::Value &data);
 
     };
 

lib/src/HttpResponseImpl.cc

@@ -26,6 +26,18 @@ HttpResponse* HttpResponse::newHttpResponse()
 {
     return new HttpResponseImpl;
 }
+
+HttpResponse* HttpResponse::newHttpResponse(const Json::Value &data)
+{
+    auto res=new HttpResponseImpl;
+    res->setStatusCode(HttpResponse::k200Ok);
+    res->setContentTypeCode(CT_APPLICATION_JSON);
+    Json::StreamWriterBuilder builder;
+    builder["commentStyle"] = "None";
+    builder["indentation"] = "";
+    res->setBody(writeString(builder, data));
+    return res;
+}
 const std::string HttpResponseImpl::web_content_type_to_string(uint8_t contenttype)
 {
     switch(contenttype) {