我使用Spring Boot 2.x和Maven
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-rest</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web-services</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-validation</artifactId>
</dependency>
{
"name": "fan",
"isCar": true,
"year": 2020,
"character": "W",
"cost": 10,
"status": "OPEN"
}
public abstract class DifferentTypesDtoFour extends DifferentTypesDtoTwo {
private Integer year;
private boolean isCar;
public DifferentTypesDtoFour() {
}
public Integer getYear() {
return year;
}
public void setYear(Integer year) {
this.year = year;
}
public boolean isCar() {
return isCar;
}
public void setCar(boolean car) {
isCar = car;
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
if (!super.equals(o)) return false;
DifferentTypesDtoFour that = (DifferentTypesDtoFour) o;
return isCar == that.isCar &&
Objects.equals(year, that.year);
}
@Override
public int hashCode() {
return Objects.hash(super.hashCode(), year, isCar);
}
@Override
public String toString() {
return super.toString() + "\n" + "DifferentTypesDtoFour{" +
"year=" + year +
", isCar=" + isCar +
'}';
}
}
我不明白这个问题的根源。
当请求到达剩余控制器时,dto接收转换后的数据。
几乎将数据转换正确,但是该字段isCar = false ...
为什么?
有人对如何解决这个问题有任何想法吗?
问题与isCar
字段的setter一起使用-设置方法的名称应为setIsCar
而不是setCar
,以便可以将请求json的isCar
值映射到您的模型的isCar
属性,
public void setIsCar(boolean isCar) {
this.isCar = isCar;
}
编辑1 ...正如@Gimby提到的,您的getter
名称应为isIsCar
,它在获取HTTP请求时不会受到影响,但最终会在该字段中看起来不匹配getter
-您可以考虑重新命名变量以避免这种输入错误问题。
Edit 2 ...解决此问题的方法之一是使用@JsonProperty而不重命名@GabLeg提到的方法,
@JsonProperty(value="isCar")
public void setCar(boolean car) {
this.isCar = car;
}