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