1:右击项目工程名称
2:Properties
3: Jvav Build Path
4: Libraries
5: Add External JARS
6: 找到“E:apache-tomcat-9.0.43libservlet-api.jar”
7:添加既可
1:右击项目工程名称
2:Properties
3: Jvav Build Path
4: Libraries
5: Add External JARS
6: 找到“E:apache-tomcat-9.0.43libservlet-api.jar”
7:添加既可