spring cloud 服务之间相互调用出错。
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报错信息：
feign.codec.DecodeException: JSON parse error: Can not construct instance of com.mmtvip.message.ResponseMessage: no String-argument constructor/factory method to deserialize from String value ('无效请求!'); nested exception is com.fasterxml.jackson.databind.JsonMappingException: Can not construct instance of com.mmtvip.message.ResponseMessage: no String-argument constructor/factory method to deserialize from String value ('无效请求!')
?at [Source: java.io.PushbackInputStream@41233828; line: 1, column: 1]
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解决方案：
将接口改为POST请求
@PostMapping("/xzh)
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cs
