SpringMVC 使用拦截器实现日志记录

一时失言乱红尘 2022-03-18 05:00 291阅读 0赞

## SpringMVC 使用拦截器实现日志记录 ##

**java web日志实现方式有很多种，这次在这里介绍使用拦截器记录日志**

1.  拦截器代码

package com.my.interceptor;
    
    import java.util.List;
    import java.util.Map;
    import java.util.Map.Entry;
    
    import javax.annotation.Resource;
    import javax.servlet.http.HttpServletRequest;
    import javax.servlet.http.HttpServletResponse;
    
    import org.apache.commons.lang3.ArrayUtils;
    import org.apache.commons.lang3.StringUtils;
    import org.springframework.util.AntPathMatcher;
    import org.springframework.web.servlet.ModelAndView;
    import org.springframework.web.servlet.handler.HandlerInterceptorAdapter;
    
    import com.my.service.AdminService;
    import com.my.service.LogService;
    import com.my.utils.WebUtils;
    
    /** * Interceptor - 日志 */
    public class LogInterceptor extends HandlerInterceptorAdapter { 
    
       /** 默认忽略参数 */
       private static final String[] DEFAULT_IGNORE_PARAMETERS = new String[] {  "password", "rePassword", "currentPassword" };
    
       /** antPathMatcher */
       private static AntPathMatcher antPathMatcher = new AntPathMatcher();
    
       /** 忽略参数 */
       private String[] ignoreParameters = DEFAULT_IGNORE_PARAMETERS;
    
       @Autowired
       private LogService logService;
    
       @Autowired
       private AdminService adminService;
       
       /** * 该方法将在请求处理之前进行调用 * @param request 请求 * @param response 响应 * @param handler 操作 * @return true继续进入下一个拦截器的preHandle方法或者进入对应的Controller方法，false终止请求 * @throws Exception */
       @Override
       public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception { 
           return super.preHandle(request, response, handler);
       }
       
       /** * 在调用Controller方法后，在DispatcherServlet 进行视图返回渲染视图前进行调用 * @param request 请求 * @param response 响应 * @param handler 操作 * @param modelAndView 视图 * @throws Exception */
       @Override
       public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception { 
       	String path = request.getServletPath();
       	//当前登录用户名
       	String operator = adminService.getLoginedName();
       	//获取用户IP
       	String ip = WebUtils.getRemoteIp(request);
       	StringBuffer parameter = new StringBuffer();
       	Map<String, String[]> parameterMap = request.getParameterMap();
       	if (parameterMap != null) { 
       		for (Entry<String, String[]> entry : parameterMap.entrySet()) { 
       			String parameterName = entry.getKey();
       			if (!ArrayUtils.contains(ignoreParameters, parameterName)) { 
       				String[] parameterValues = entry.getValue();
       				if (parameterValues != null) { 
       					for (String parameterValue : parameterValues) { 
       						parameter.append(parameterName + " = " + parameterValue + "\n");
       					}
       				}
       			}
       		}
       	}
       	Log log = new Log();
       	log.setParameter(parameter.toString());
       	log.setOperator(operator);
       	log.setIp(ip);
       	logService.save(log);
       }
       
       /** * 在视图渲染后调用 * @param request 请求 * @param response 响应 * @param handler 操作 * @param ex * @throws Exception */
       @Override
       public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception { 
           super.afterCompletion(request, response, handler, ex);
       }
    }

1.  配置文件中加入连接器配置

<mvc:interceptor>
      	<mvc:mapping path="/service/**" />
      	<bean id="logInterceptor" class="com.my.interceptor.LogInterceptor" />
      </mvc:interceptor>

1.  获取远程IP地址

/** * 获取远程网协地址 * * @param request HttpServletRequest * @return 远程网协地址 */
        public static String getRemoteIp(HttpServletRequest request) { 
            if (request == null) { 
                return null;
            }
            String remoteIp = request.getHeader("x-forwarded-for");
            if (StringUtils.isBlank(remoteIp) || StringUtils.equalsIgnoreCase(remoteIp, "unknown")) { 
                remoteIp = request.getHeader("Proxy-Client-IP");
            }
            if (StringUtils.isBlank(remoteIp) || StringUtils.equalsIgnoreCase(remoteIp, "unknown")) { 
                remoteIp = request.getHeader("WL-Proxy-Client-IP");
            }
            if (StringUtils.isBlank(remoteIp) || StringUtils.equalsIgnoreCase(remoteIp, "unknown")) { 
                remoteIp = request.getHeader("HTTP_CLIENT_IP");
            }
            if (StringUtils.isBlank(remoteIp) || StringUtils.equalsIgnoreCase(remoteIp, "unknown")) { 
                remoteIp = request.getHeader("HTTP_X_FORWARDED_FOR");
            }
            if (StringUtils.isBlank(remoteIp) || StringUtils.equalsIgnoreCase(remoteIp, "unknown")) { 
                remoteIp = request.getRemoteAddr();
            }
            return remoteIp;
        }