示例：
当前url：http://localhost:8080/CarsiLogCenter_new/idpstat.jsp?action=idp.sptopn
request.getRequestURL() http://localhost:8080/CarsiLogCenter_new/idpstat.jsp
request.getRequestURI() /CarsiLogCenter_new/idpstat.jsp
request.getContextPath()/CarsiLogCenter_new
request.getServletPath() /idpstat.jsp
request.getQueryString() action=idp.sptopn
public static String getLastAccessUrl(HttpServletRequest request) { StringBuffer requestURL = request.getRequestURI(); String queryString = request.getQueryString(); if (queryString == null) { return requestURL.toString(); } return requestURL + "?" + queryString; }
1、request.getRequestURL()
返回的是完整的url，包括Http协议，端口号，servlet名字和映射路径，但它不包含请求参数。
2、request.getRequestURI()
得到的是request URL的部分值，并且web容器没有decode过的
3、request.getContextPath()
返回 the context of the request.
4、request.getServletPath()
返回调用servlet的部分url.
5、request.getQueryString()
返回url路径后面的查询字符串
首先在你的Maven的pom文件里加入aop的依赖：
<dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-aop</artifactId> </dependency>
在spring boot里面一切配置都是很简单的，下面为我所有被请求到的controller加上Aop的功能吧，看码：
import javax.servlet.http.HttpServletRequest; import org.aspectj.lang.ProceedingJoinPoint; import org.aspectj.lang.annotation.Around; import org.aspectj.lang.annotation.Aspect; import org.aspectj.lang.annotation.Pointcut; import org.springframework.context.annotation.Configuration; import org.springframework.web.context.request.RequestAttributes; import org.springframework.web.context.request.RequestContextHolder; import org.springframework.web.context.request.ServletRequestAttributes; import com.google.gson.Gson; import org.slf4j.Logger; import org.slf4j.LoggerFactory;; @Aspect //定义一个切面 @Configuration public class LogRecordAspect { private static final Logger logger = LoggerFactory.getLogger(UserInterceptor.class); // 定义切点Pointcut @Pointcut("execution(* com.jiaobuchong.web.*Controller.*(..))") public void excudeService() { } @Around("excudeService()") public Object doAround(ProceedingJoinPoint pjp) throws Throwable { RequestAttributes ra = RequestContextHolder.getRequestAttributes(); ServletRequestAttributes sra = (ServletRequestAttributes) ra; HttpServletRequest request = sra.getRequest(); String url = request.getRequestURL().toString(); String method = request.getMethod(); String uri = request.getRequestURI(); String queryString = request.getQueryString(); logger.info("请求开始, 各个参数, url: {}, method: {}, uri: {}, params: {}", url, method, uri, queryString); // result的值就是被拦截方法的返回值 Object result = pjp.proceed(); Gson gson = new Gson(); logger.info("请求结束，controller的返回值是 " + gson.toJson(result)); return result; } }
只要加上上面这个类，Aop就算配置好了，不信，去访问以下你的Controller试试。对比以前配置aop的方式(xml文件)，现在的配置都到Java代码里来了，@Configuration这个Annotation就是JavaConfig的典型代表，Spring boot在启动时会会自动去加载这些配置，实现相应的配置功能。这个简单的小例子算是抛砖引玉吧，我也是参考别人的博客，更多细节，查看下面的博客：
http://ysj5125094.iteye.com/blog/2151855
http://blog.csdn.net/jiaobuchong/article/details/50420379
