首先web.xml配置
-
- <!-- spring-mvc -->
- <servlet>
- <servlet-name>springServlet</servlet-name>
- <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
- <init-param>
- <param-name>contextConfigLocation</param-name>
- <param-value>classpath:springmvc-servlet.xml</param-value>
- </init-param>
- <load-on-startup>1</load-on-startup>
- </servlet>
- <servlet-mapping>
- <servlet-name>springServlet</servlet-name>
- <url-pattern>/</url-pattern>
- </servlet-mapping>
url-pattern 配置/即可，如果配置/*的话会出问提，连返回视图jsp也会拦截，具体原因请看翻看源码
问提：这样配置的话，大家都会忽略一个问题，就是a/b/c可以访问，但是a/b/c.do;a/b/c.mm;a/b/c.zz都可以访问a/b/c的controller，在不修改源码源码的情况下，我们来
解决这个问题，虽然都是拦截了/这样的请求，但是我们只让a/b/c这样的请求进入controller，带有【.】的后缀的不让他进入，直接去404页面
解决办法：
web.xml加入filte
-
- <!-- 对url进行简单的过滤 -->
- <filter>
- <filter-name>servletRequest</filter-name>
- <filter-class>cn.tomcat.quickstart.common.filter.ServletRequestFilter</filter-class>
- </filter>
- <filter-mapping>
- <filter-name>servletRequest</filter-name>
- <url-pattern>/*</url-pattern>
- </filter-mapping>
- ServletRequestFilter.java
- import java.io.IOException;
- import javax.servlet.FilterChain;
- import javax.servlet.ServletException;
- import javax.servlet.http.HttpServletRequest;
- import javax.servlet.http.HttpServletResponse;
- import org.springframework.web.filter.OncePerRequestFilter;
- /**
- *
- * 对进来的url进行处理,放在filter最前面,springmvc <url-pattern>/</url-pattern>
- * 默认拦截所有请求,ex:a/b/c.do,a/b/c.html,a/b/c.action,a/b/c
- * 去掉带后缀的访问,模仿restful风格,只接受a/b/c的请求
- *
- */
- public class ServletRequestFilter extends OncePerRequestFilter {
- @Override
- protected void doFilterInternal(HttpServletRequest request,
- HttpServletResponse response, FilterChain filterChain)
- throws ServletException, IOException {
- String requestPath = request.getServletPath();
- //不用担心会把静态文件给拦截了，例如*.js,*.css类似于这样的，在web.xml做处理了
- //所有请求带有后缀【.】的直接去404,不接受这样的请求
- if(requestPath.lastIndexOf(".")!=-1){
- request.getRequestDispatcher("/WEB-INF/pages/error/404.jsp").forward(request, response);
- }else{
- filterChain.doFilter(request, response);
- }
- }
- }
带有.结尾的直接go 404,哈哈，也许你会问要是这样静态文件不是也会被过滤掉了吗？类似于*.js,*.css,.....N多这样类型的文件
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