json @JsonPropertyOrder（给字段排序） 作者：马育民 • 2020-10-03 13:42 • 阅读：10387 # 作用 序列化时生效，将返回的json按字段排序。 # 例子 ``` import com.fasterxml.jackson.annotation.JsonPropertyOrder; @JsonPropertyOrder(value={"id","username","password"}) public class Student { private String id; private String username; private String password; public String getId() { return id; } public void setId(String id) { this.id = id; } public String getUsername() { return username; } public void setUsername(String username) { this.username = username; } public String getPassword() { return password; } public void setPassword(String password) { this.password = password; } } ``` 原文出处：http://malaoshi.top/show_1EF6N4bRTZ45.html