google Gson学习笔记及与json-lib的比较
因为gson网上的帮助文档打开时比较慢,所以把帮助文档摘录如此,方便查看:
1. 基本类型转化
2.对象转化
输出如下:[{"name":"xxlong0","id":"0","age":20,"isOk":false},{"name":"xxlong1","id":"1","age":21,"isOk":false},{"name":"xxlong2","id":"2","age":22,"isOk":false},{"name":"xxlong3","id":"3","age":23,"isOk":false},{"name":"xxlong4","id":"4","age":24,"isOk":false}]
综合实例2:
需求:想将字符串{'tableName' :'ys_index_y','year': '2008','params':'[z_expense,z_expense_profit,z_main_margin]','isOperAll':'false','copyToYear':''}还原成对象OpeerConditions,OpeerConditions对象代码如下所示public static void main(String[] args) { String json = "{'tableName' :'ys_index_y','year': '2008','isOperAll':'false','copyToYear':''}"; Gson gson = new Gson(); OperConditions conditions = gson.fromJson(json, OperConditions.class); System.out.println(conditions.isOperALl() == false); // ==>输出为true String json1 = "['z_expense','z_expense_profit','z_main_margin']"; String[] params = gson.fromJson(json1,String[].class); conditions.setParams(params); System.out.println(conditions.getParams()[0]); // ==>输出为z_expense }
Gson可以直接转化成String[]数组，同时转化OperConditions时也比json-lib简单。
还有一点是非常值得注意的，就是你的bean中有boolean属性值时，强烈建议你别像我这个例子中一样命名为以is开头的属性名，这可能给你带来意想不到的错误，关于这一点的详细解说请参看我的文章json lib 学习笔记
【转载地址】
http://ryxxlong.iteye.com/blog/736783
