使用Flask定义URL的时候,如果出现"AssertionError: View function mapping is overwriting an existing endpoint function"这个异常信息,就说明定义了多个同名的视图函数,只需要改成不同的函数名即可. 这是为什么呢? 原来flask中url跟视图函数并不是直接对应的,而是有一个中间者-endpoint. 三者之间的关系是这样的: ``` url---->endpoint---->view_fu…
jFinal中报对应模型不存在的错误(The Table mapping of model: demo.User not exists) 贴出错误: java.lang.RuntimeException: The Table mapping of model: demo.User not exists. Please add mapping to ActiveRecordPlugin: activeRecordPlugin.addMapping(tableName, YourModel.clas…
报错: javax.websocket.DeploymentException: Multiple Endpoints may not be deployed to the same path [/websocket/{sid}] : existing endpoint was class com.sanyi.qibaobusiness.framework.webSocket.WebSocketServer and new endpoint is class com.sanyi.qibaobus…