在网页中想后台传递多个数据时，有时数据还是多个动态列表，数据很复杂时，JavaScript程序员喜欢把他们作为json串进行处理，后台收到后需要对json字符串进行解析，幸好有JSON-lib，这个Java类包用于把bean,map和XML转换成JSON并能够把JSON转回成bean和DynaBean。
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public class Test {

/**

* @param args

* @author wen

*/

public static void main(String[] args) {

// test1();

// test2();

String json = “{1:{1:{jhinfo:['计划一','知行网,'www.zhixing123.cn'],jhrate:['1-5:10.0','6-100:5.0/1']},2:{jhinfo:['计划二',''知行网,'www.zhixing123.cn'],],jhrate:['1-100:100.0']},3:{jhinfo:['计划三',''知行网,'www.zhixing123.cn'],],jhrate:['1-100:150.0/7']}},2:{4:{jhinfo:['年计划',''知行网,'www.zhixing123.cn'],],jhrate:['365-365:1000.0']}}}”;

try {

JSONObject jsonObject = JSONObject.fromObject(json);

String name = jsonObject.getString(“1″);

String address = jsonObject.getString(“2″);

System.out.println(“name is:” + name);

System.out.println(“address is:” + address);

Iterator it=jsonObject.keys();

while (it.hasNext()){

System.out.println(jsonObject.get(it.next()));

}

} catch (JSONException e) {

e.printStackTrace();

}

}

/**

* json对象字符串转换

* @author wen

*/

private static void test2() {

String json = “{‘name’: ‘亲亲宝宝’,'array’:[{'a':'111','b':'222','c':'333'},{},{'a':'999'}],’address’:'亲亲宝宝’}”;

try {

JSONObject jsonObject = JSONObject.fromObject(json);

String name = jsonObject.getString(“name”);

String address = jsonObject.getString(“address”);

System.out.println(“name is:” + name);

System.out.println(“address is:” + address);

JSONArray jsonArray = jsonObject.getJSONArray(“array”);

for (int i = 0; i < jsonArray.size(); i++) {

System.out.println(“item ” + i + ” :” + jsonArray.getString(i));

}

} catch (JSONException e) {

e.printStackTrace();

}

}

/**

* json数组 转换，数组以[开头

* @author wen

*/

private static void test1() {

boolean[] boolArray = new boolean[]{true,false,true};

JSONArray jsonArray1 = JSONArray.fromObject( boolArray );

System.out.println( jsonArray1 );

// prints [true,false,true]

List list = new ArrayList();

list.add( “first” );

list.add( “second” );

JSONArray jsonArray2 = JSONArray.fromObject( list );

System.out.println( jsonArray2 );

// prints ["first","second"]

JSONArray jsonArray3 = JSONArray.fromObject( “['json','is','easy']” );

System.out.println( jsonArray3 );

// prints ["json","is","easy"]

}