java如何解析json 格式的字符串

public static void main(String[] args){
String temp="{'data':{'a':[{'b1':'bb1','c1':'cc1'},{'b2':'bb2','c2':'cc2'}]}}";
JSONObject jodata =JSONObject.fromObject(temp);
JSONObject joa =JSONObject.fromObject(jodata.get("data").toString());
JSONArray ja=JSONArray.fromObject(joa.get("a"));
for(int i=0;iJSONObject o=ja.getJSONObject(i);
if(o.get("b1")!=null){
System.out.println(o.get("b1"));
}
if(o.get("c1")!=null){
System.out.println(o.get("c1"));
}
if(o.get("b2")!=null){
System.out.println(o.get("b2"));
}
if(o.get("c2")!=null){
System.out.println(o.get("c2"));
}
}
}
注：要包含两个jar包ezmorph-1.0.6.jar和json-lib-2.2.2-jdk15.jar，jar包在附件中