com.netflix.hystrix.contrib.javanica.exception.FallbackDefinitionException: fallback method wasn't found: serviceError([class java.lang.String]) 异常
在使用spring cloud 的 Hystrix 后可能会遇到 如下截图错误:

后台代码如下:

找了好一会经过分析参数方法和原方法参数步一致造成:
修改后代码如下:

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