在开发过程中Spring Mvc 默认 Url和参数名称都是区分大小写的
比如：www.a.com/user/getUserInfo?userId=1
www.a.com/user/getuserInfo?userId=1
www.a.com/user/getUserInfo?userid=1
www.a.com/user/getuserinfo?userid=1
这些都认为不同的地址和参数，在实际中用户根本不区分这些，所以我们要忽略大小写
URL忽略大小写
import org.springframework.context.annotation.Configuration; import org.springframework.util.AntPathMatcher; import org.springframework.web.servlet.config.annotation.PathMatchConfigurer; import org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport; /** * Created by tianwei on 2017/6/22. */ @Configuration public class SpringWebConfig extends WebMvcConfigurationSupport { @Override public void configurePathMatch(PathMatchConfigurer configurer) { AntPathMatcher pathMatcher = new AntPathMatcher(); pathMatcher.setCaseSensitive(false); configurer.setPathMatcher(pathMatcher); } }
参数名称忽略大小写
import java.io.IOException; import java.util.Collections; import java.util.Enumeration; import java.util.Map; import javax.servlet.FilterChain; import javax.servlet.ServletException; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletRequestWrapper; import javax.servlet.http.HttpServletResponse; import org.springframework.util.LinkedCaseInsensitiveMap; import org.springframework.web.filter.OncePerRequestFilter; public class CaseInsensitiveRequestParameterNameFilter extends OncePerRequestFilter { @Override protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain filterChain) throws ServletException, IOException { filterChain.doFilter(new CaseInsensitiveParameterNameHttpServletRequest(request), response); } public static class CaseInsensitiveParameterNameHttpServletRequest extends HttpServletRequestWrapper { private final LinkedCaseInsensitiveMap<String[]> map = new LinkedCaseInsensitiveMap<>(); @SuppressWarnings("unchecked") public CaseInsensitiveParameterNameHttpServletRequest(HttpServletRequest request) { super(request); map.putAll(request.getParameterMap()); } @Override public String getParameter(String name) { String[] array = this.map.get(name); if (array != null && array.length > 0) return array[0]; return null; } @Override public Map<String, String[]> getParameterMap() { return Collections.unmodifiableMap(this.map); } @Override public Enumeration<String> getParameterNames() { return Collections.enumeration(this.map.keySet()); } @Override public String[] getParameterValues(String name) { return this.map.get(name); } } }
定义Bean
<!--输入参数忽略大小写--> <bean id="caseInsensitiveRequestFilterProxy" class="org.springframework.web.filter.DelegatingFilterProxy"> <property name="targetBeanName" value="caseInsensitiveRequestFilter"/> </bean> <bean id="caseInsensitiveRequestFilter" class="com.hantianwei.util.CaseInsensitiveRequestParameterNameFilter"> </bean>
web.xml 增加Filter
<filter> <filter-name>caseInsensitiveRequestFilterProxy</filter-name> <filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class> </filter> <filter-mapping> <filter-name>caseInsensitiveRequestFilterProxy</filter-name> <url-pattern>/*</url-pattern> </filter-mapping>
到此再次运行项目就可以了，最上面的URL访问的是同一页面了
