AppEngine端点JsonMappingException - 避免要序列化字段 [英] AppEngine Endpoints JsonMappingException - Avoid field to be serialized

问题描述

我遇到此错误：

 com.google.appengine.repackaged.org.codehaus.jackson.map.JsonMappingException: Direct self-reference leading to cycle

我一直试图避免该字段导致序列化但是错误未得到纠正。
我试图把@JsonIgnore放在任何地方，包括getter，setter，属性以及每种可能的组合。

I have been trying to avoid the field causing this to be serialized but the error is not corrected. I have tried to put @JsonIgnore everywhere, in the getter, the setter, the attribute and every possible combination of those.

谢谢

- >编辑

我无法导入com.google.appengine.repackaged.org.codehaus.jackson.annotate.JsonIgnoreProperties ，它说使用com.google.appengine.repackaged可能会导致您的应用在没有警告的情况下中断。所以我导入了org.codehaus.jackson.annotate.JsonIgnoreProperties。

I can't import com.google.appengine.repackaged.org.codehaus.jackson.annotate.JsonIgnoreProperties, it says that "Use of com.google.appengine.repackaged may result in your app breaking without warning.". So I import org.codehaus.jackson.annotate.JsonIgnoreProperties instead.

在重新打包的包中抛出异常（我无法导入的）。这就是为什么我的JsonIgnore无法工作？

The exception is thrown in the repackaged package (the one I cant import). Is that why my JsonIgnore is not working??

再次感谢。

推荐答案

我找到了解决方案。我将整个包放在注释中。

I found the solution. I put the entire package in the annotation.

@com.google.appengine.repackaged.org.codehaus.jackson.annotate.JsonIgnoreProperties({"users"})
public class MyClass extends MySuperClass{
    ....
}

这样Eclipse就不会给我这个错误：使用com.google.appengine.repackaged可能会导致你的应用程序在没有警告的情况下破坏，一切正常。

This way Eclipse doesn't gives me this error: Use of com.google.appengine.repackaged may result in your app breaking without warning and everything worked fine.

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