你的servlet在web.xml文件中申明了吗?类似<servlet>
<servlet-name>ChackServlet</servlet-name>
<servlet-class>ChackServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>ChackServlet</servlet-name>
<url-pattern>/chack_servlet<url-pattern>
</servlet-mapping>
<servlet-name>ChackServlet</servlet-name>
<servlet-class>ChackServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>ChackServlet</servlet-name>
<url-pattern>/chack_servlet<url-pattern>
</servlet-mapping>
解决方案 »
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