json数据处理

1. 引入jar包

		<dependency>
			<groupId>net.sf.json-lib</groupId>
			<artifactId>json-lib</artifactId>
			<version>2.4</version>
			<classifier>jdk15</classifier>
		</dependency>

2. 解析

JSONObject jsonObject = JSONObject.fromObject("json字符串");

String openid = jsonObject.getString("openid");