@RequestBody不能映射到对象
在使用@RequestBody 映射对象时总是获取不到json穿过来的值
@RequestMapping(value = "/json")
public @ResponseBody Items json(@RequestBody Items items) {
System.out.println(items);
return items;
}
public class Items {
private Integer id;
private String name;
private Float price;
private String pic;
private Date createtime;
private String detail;
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name == null ? null : name.trim();
}
public Float getPrice() {
return price;
}
public void setPrice(Float price) {
this.price = price;
}
public String getPic() {
return pic;
}
public void setPic(String pic) {
this.pic = pic == null ? null : pic.trim();
}
public Date getCreatetime() {
return createtime;
}
public void setCreatetime(Date createtime) {
this.createtime = createtime;
}
public String getDetail() {
return detail;
}
public void setDetail(String detail) {
this.detail = detail == null ? null : detail.trim();
}
@Override
public String toString() {
return "Items [id=" + id + ", name=" + name + ", price=" + price + ", pic=" + pic + ", createtime=" + createtime
+ ", detail=" + detail + "]";
}
}
解决方法
在springmvc.xml配置文件加入fastjson库,代码如下
<mvc:annotation-driven>
<mvc:message-converters register-defaults="true">
<bean class="com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter">
</bean>
</mvc:message-converters>
</mvc:annotation-driven>
然后问题就解决了
@RequestBody使用方法(将数据映射到java对象上)
将请求的json数据映射到@RequestBody 声明的对象上
1.请求方式如下
将id,name,age 的值映射到对象上
2.对象定义如下
属性名称要和json中的名称对应上
@Getter
@Setter
@ToString
public class UserEntity {
private Long id;
private String name;
private int age;
}
3.可以看到,json数据映射到UserEntity里
以上为个人经验,希望能给大家一个参考,也希望大家多多支持编程网。