json实例

孟凯泽

2023-12-01

<html>

</script>
<body>

</body>
</html>

页面显示

jack23

document.writeln("xx" + my_object.toJSONString());
</script>
<body>
test
</body>
</html>

页面显示 xx{"FBI":[{"name":"rose","age":"25"},{"name":"jack","age":"25"}],"NBA":[{"name":"tom","sex":"man"},{"name":"jack","sex":"women"}]} test

详细参考

[java] view plain copy

import <a href="http://lib.csdn.net/base/17" class='replace_word' title="Java EE知识库" target='_blank' style='color:#df3434; font-weight:bold;'>Java</a>.util.ArrayList;
import org.json.JSONArray;
import org.json.JSONObject;
public class Test {
public static void main(String[] args) throws Exception {
ArrayList<Area> areas = new ArrayList<Area>();
areas.add(new Test.Area("福建", "福州"));
areas.add(new Test.Area("福建", "厦门"));
areas.add(new Test.Area("福建", "泉州"));
areas.add(new Test.Area("四川", "成都"));
areas.add(new Test.Area("四川", "攀枝花"));
areas.add(new Test.Area("上海", "浦东"));
JSONObject jsonObject = new JSONObject();
for (Test.Area area : areas) {
if (jsonObject.has(area.province)) {
JSONArray jsonArray = (JSONArray) jsonObject.get(area.province);
jsonArray.put(area.city);
} else {
JSONArray jsonArray = new JSONArray();
jsonArray.put(area.city);
jsonObject.put(area.province, jsonArray);
}
}
System.out.println(jsonObject);
}
static class Area {
private final String province;
private final String city;
Area(String province, String city) {
this.province = province;
this.city = city;
}
}
}

运行结果：

{"上海":["浦东"],"四川":["成都","攀枝花"],"福建":["福州","厦门","泉州"]}

参考文献：