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当bean中的属性大小写和json数据中不一致时,反序列化后序列化导致属性数据丢失,测试代码如下
public static void main(String[] args) { String s = "{\"USER_NAME\": \"faster\"}"; User user = JSON.parseObject(s, User.class); System.out.println("===>" + user.getUsername()); System.out.println("===>" + user.getUser_name()); System.out.println(JSON.toJSONString(user)); } public static class User { private String user_name; private String username; public String getUser_name() { return user_name; } public void setUser_name(String user_name) { this.user_name = user_name; } public String getUsername() { return username; } public void setUsername(String username) { this.username = username; } }
测试结果为如下
===>faster ===>null {"username":"faster"}
这种情况应该如何解决
The text was updated successfully, but these errors were encountered:
toString(bean,SerializerFeature.WriteMapNullValue)
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我的表达可能有些问题,是JSON字符串中的USER_NAME属性在通过fastjson转换后变成了username
@JSONField(name = "user_name") 设置自定义的属性名
fastjson 是可以默认去掉下划线的,你这边两种规则都刚好用到了,所以建议你这边只保留一种规则,也就是说不建议存在下划线去掉的情况 filedName 存在重复的情况, #3246
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当bean中的属性大小写和json数据中不一致时,反序列化后序列化导致属性数据丢失,测试代码如下
测试结果为如下
这种情况应该如何解决
The text was updated successfully, but these errors were encountered: