1. 错误信息:
com.fasterxml.jackson.databind.exc.MismatchedInputException: Cannot deserialize instance of java.util.ArrayList<com.chaz.weather.bean.Yesterday>
out of START_OBJECT token
踩坑:
SpringBoot 反序列化报错
想把json数据直接转成对象,实体类其中有个属性是java.util.List;的,多写了一个持续输出报错,然后就凉凉月色为你思念成河!!!
原文:
public class Data {
private String shidu;
private Integer pm25;
private Integer pm10;
private String quality;
private String wendu;
private String ganmao;
private List<Forecast> forecast;
private List<Yesterday> yesterday;
}
修改后的:
public class Data {
private String shidu;
private Integer pm25;
private Integer pm10;
private String quality;
private String wendu;
private String ganmao;
private List<Forecast> forecast;
private Yesterday yesterday;
}
这样就好了,
JSON 转换工具:检查你的JSON数据是否标准
推荐网址:http://www.bejson.com/
2. 错误信息二
com.fasterxml.jackson.databind.exc.InvalidDefinitionException: Cannot construct (no Creators)
这个错误是由于你没有在实体类里面没有写无参的构造函数
还好今天只遇到了这两个错误,幸哉!