{"code":"PARAM_ERROR","message":"无法将输入源“/body/openid”映射到目标字段“用户openid”中，此字段并非多重字段但被输入源“/uri_template/openid”映射过了。"}
上面报错是什么原因呢？
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opneid在url传，body不需要传了，文档有写的
{openid} 这种表示法有个RFC标准协议，https://www.rfc-editor.org/rfc/rfc6570.html 通俗讲就是模版变量，需要在最终请求前，替换为实际的值，你这个异常应该是没替换的结果。