javax.servlet is accessible from more than one module

javax.servlet is accessible from more than one module java項目中javax.servlet.XXX出錯，如下所示： 一般的話就兩種情況：要麼多引入了servlet-api.jar,要麼Tomcat的包路徑不在Classpath 右鍵 項目--> Properties --> Java Build Path --> Libraries -->

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