json的常用转换

//JSON转换JS
Var test=json.parse=('{"a":"hellow"}') 结果未为(a:'hellow')
//JS转换JSON
Var json=json.stringify({a:"hellow"});结果为‘{“a:"hellow"}’
//JAVA对象转换成JSON字符串
@requestmapping(value="/json",produces="application/json;charset=utf-8")
Public  String test() throws jsonperoessingException{
    ObjectMapper mapper=new ObjectMapper();
    String test=mapper.writeValueAsString(test);
}