import javax.servlet.http.HttpSession;
2018-01-05 00:00
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一, 创建Servlet时候,当写入如下语句时:
会提示你,程序包javax.servlet和程序包javax.servlet.http不存在的错误
2, 原因在于,java编译器没有找到软件包javax.servelt.
3, 解决的方法:把tomcat安装包里的lib目录下的servlet-api.jar拷贝一份到工程文件夹下的web目录下的WEB-INF目录下lib子文件下的,即 web—>WEB-INF–lib.
4、加入后记得buildpath, eclipse 和IDEA 方法不同.
eclipse,选中 相应jar包后右键 ->buildpath->add to build path
idea 参考:http://www.cnblogs.com/miller-zou/p/5495168.html
import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import javax.servlet.http.HttpSession;
会提示你,程序包javax.servlet和程序包javax.servlet.http不存在的错误
2, 原因在于,java编译器没有找到软件包javax.servelt.
3, 解决的方法:把tomcat安装包里的lib目录下的servlet-api.jar拷贝一份到工程文件夹下的web目录下的WEB-INF目录下lib子文件下的,即 web—>WEB-INF–lib.
4、加入后记得buildpath, eclipse 和IDEA 方法不同.
eclipse,选中 相应jar包后右键 ->buildpath->add to build path
idea 参考:http://www.cnblogs.com/miller-zou/p/5495168.html
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