Using the C + + JSON library under Linux

1. Download Jsoncpp
http://sourceforge.net/projects/jsoncpp/files/
2. Download SCons
Http://sourceforge.net/projects/scons/files/scons/2.1.0/scons-2.1.0.tar.gz/download

3, Decompression scons-2.1.0.tar.gz

TAR-ZVXF scons-2.1.0.tar.gz
My extraction is in the/opt/json/scons-2.1.0 directory.

4, go to the decompression directory scons-2.1.0 below, execute the command:

sudo python setup.py install

5, decompression Jsconcpp

TAR-ZVXF jsoncpp-src-0.5.0.tar.gz
My decompression is under the/opt/json/jsoncpp-src-0.5.0.

6, enter into the Jsoncpp decompression directory, execute the command:

sudo scons PLATFORM=LINUX-GCC

7. Copy the JSON folder under the/jsoncpp-src-0.5.0/include/directory to the/usr/include/
8, the JSONCPP-SRC-0.5.0/LIBS/LINUX-GCC-4.9.1/directory under the libjson_linux-gcc-4.9.1_libmt.a copy to/usr/local/lib/, and for the convenience of use, Rename it to Libjson.a

8. Test code

//json.cpp#include <iostream>#include <json/json.h>using namespace STD;intMain () {stringtest="{\" id\ ": 1,\" name\ ": \" Kurama\ "}";    Json::reader Reader; Json::value Value;if(Reader.parse (Test,value)) {if(!value["id"].isnull ()) {cout<<value["id"].asint () <<endl;cout<<value["Name"].asstring () <<endl; }    }return 0;}

Compile: You need to specify the link library (the file that you just renamed):

g++ Json.cpp-ljson

Output:

"Above is a comprehensive online multi-article collation, in this record, to prevent forgetting"

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Using the C + + JSON library under Linux