一段时间没亲自建新项目玩乐,今天建立了一Maven project的时候发现了以下异常,Description Resource Path Location Type The superclass "javax.servlet.http.HttpServlet" was not found on the Java Build Path index.jsp /easyBuy/src/main/webapp line 1 JSP Problem 经过查找原因,原来是因为忘记设置server
"The constructor ClassPathXmlApplicationContext(String) refers to the missing type BeansException" "构造函数ClassPathXmlApplicationContext(字符串)是指缺失类型BeansException" 出现错误的原因:jar没有正确引入,即使表面上你能import包. import org.junit.Test; import org.spring
执行一下代码,出现错误,TypeError: must be type, not classobj class A(): def __init__(self): print("Enter A") print("Leave A") class B(A): def __init__(self): print("Enter B") super(B, self).__init__()