Springmvc restful配置遇到的小坑
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2024-03-13 13:10:33
首先web.xml配置
spr...
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