java和json的兄弟情义
作者:互联网
1.首先引入依赖
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.2.51</version>
</dependency>
2.编写java对象实体类
public class prove {
private Integer prove_id;
private String prove_url;
private String prove_description;
private Integer activity_id;
private String topic;
}
3.实现java对象与Json字符串之间的转化
@Test
void testProveAdd(){
System.out.println(111);
Object obj = JSONArray.toJSON("{
"activity_id": 0,
"prove_description": "string",
"prove_id": 0,
"prove_url": "string",
"topic": "string"
}");
String json = obj.toString();
//使用FastJson从json串中根据key获取value :https://www.cnblogs.com/jun1019/p/7574800.html
JSONObject jsonObject = JSONObject.parseObject(json);
String prove_url=jsonObject.getString("prove_url");
String prove_description=jsonObject.getString("prove_description");
Integer activity_id=Integer.parseInt(jsonObject.getString("activity_id"));
String topic=jsonObject.getString("topic");
String new_prove_url = Base64Test.GenerateImagebendi(prove_url);
prove newprove=new prove();
newprove.setActivity_id(activity_id);
newprove.setProve_description(prove_description);
newprove.setProve_url(new_prove_url);
newprove.setTopic(topic);
tbScoreProveMapper.insertProve(newprove);
System.out.println(newprove);
TbScoreProve tbScoreProve1=tbScoreProveMapper.selectById(newprove.getProve_id());
System.out.println(tbScoreProve1);
}
4.获取json的某个key的值
JSONObject jsonObject = JSONObject.parseObject(json);
String prove_url=jsonObject.getString("prove_url");
String prove_description=jsonObject.getString("prove_description");
Integer activity_id=Integer.parseInt(jsonObject.getString("activity_id"));
String topic=jsonObject.getString("topic");
jackjson也是同样的道理具体可以自己查阅相关资料
参考资料
java对象与Json字符串之间的转化(fastjson)
使用FastJson从json串中根据key获取value
标签:情义,String,prove,url,jsonObject,json,newprove,java,id 来源: https://blog.csdn.net/weixin_44389577/article/details/117440506