不支持 Spring Rest POST Json RequestBody 内容类型 [英] Spring Rest POST Json RequestBody Content type not supported

问题描述

当我尝试使用 post 方法发布新对象时.RequestBody 无法识别 contentType.Spring 已经配置好并且 POST 可以与其他对象一起工作，但不是这个特定的对象.

When I try to post new object with post method. RequestBody could not recognize contentType. Spring is already configured and POST could work with others objects, but not this specific one.

org.springframework.web.HttpMediaTypeNotSupportedException: Content type 'application/json;charset=UTF-8' not supported

如果我尝试相同的请求，只需更改 requestbody 对象.它有效.

If I try the same request just changing requestbody object. It works.

推荐答案

我找到了解决方案.这是因为我有两个同名但类型不同的二传手.

I found solution. It's was because I had 2 setter with same name but different type.

我的班级有 id 属性 int，当我对我的对象进行休眠时，我将其替换为 Integer.

My class had id property int that I replaced with Integer when à Hibernitify my object.

但显然，我忘记删除二传手，我有:

But apparently, I forgot to remove setters and I had :

/**
 * @param id
 *            the id to set
 */
public void setId(int id) {
    this.id = id;
}

/**
 * @param id
 *            the id to set
 */
public void setId(Integer id) {
    this.id = id;
}

当我移除这个 setter 时，rest resquest 工作得很好.

When I removed this setter, rest resquest work very well.

Intead 抛出解组错误或反映类错误.异常 HttpMediaTypeNotSupportedException 在这里接缝真的很奇怪.

Intead to throw unmarshalling error or reflect class error. Exception HttpMediaTypeNotSupportedException seams really strange here.

我希望这个 stackoverflow 可以帮助其他人.

I hope this stackoverflow could be help someone else.

您可以检查您的 Spring 服务器 控制台是否有以下错误消息:

You can check your Spring server console for the following error message:

未能评估类型 [简单类型，class your.package.ClassName]:com.fasterxml.jackson.databind.JsonMappingException:冲突属性propertyname"的 setter 定义

Failed to evaluate Jackson deserialization for type [simple type, class your.package.ClassName]: com.fasterxml.jackson.databind.JsonMappingException: Conflicting setter definitions for property "propertyname"

那么您可以确定您正在处理上述问题.

Then you can be sure you are dealing with the issue mentioned above.

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