filter + interceptor

spring-interceptor/pom.xml

@@ -166,4 +166,19 @@
         </dependency>
     </dependencies>
 
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>3.0</version>
+                <configuration>
+                    <source>1.8</source>
+                    <target>1.8</target>
+                </configuration>
+            </plugin>
+
+        </plugins>
+    </build>
+
 </project>

spring-interceptor/src/main/java/com/vonzhou/learning/filter/SimpleServletFilter.java

@@ -0,0 +1,33 @@
+package com.vonzhou.learning.filter;
+
+import org.apache.log4j.Logger;
+
+import javax.servlet.*;
+import javax.servlet.http.HttpServletResponse;
+import java.io.IOException;
+
+/**
+ * Created by vonzhou on 16/7/23.
+ */
+public class SimpleServletFilter implements Filter{
+    private static Logger logger = Logger.getLogger(SimpleServletFilter.class);
+
+    public void init(FilterConfig filterConfig) throws ServletException {
+        logger.info("SimpleServletFilter init....");
+    }
+
+    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
+        String id = request.getParameter("id");
+        if(id != null && !id.isEmpty() && !id.equals("123")){
+            chain.doFilter(request,response);
+        }
+
+        // Reply directly here
+        HttpServletResponse httpResponse = (HttpServletResponse)response;
+        httpResponse.getWriter().println("+++ From Filter, Another Page...enjoy");
+    }
+
+    public void destroy() {
+        logger.info("SimpleServletFilter destroy....");
+    }
+}

spring-interceptor/src/main/java/com/vonzhou/learning/interceptor/LogInterceptor.java

@@ -30,6 +30,10 @@ public boolean preHandle(HttpServletRequest request, HttpServletResponse respons
         long startTime = System.currentTimeMillis();
         request.setAttribute("startTime", startTime);
         logger.info("Will call " + handler.toString());
+
+
+//        response.getWriter().println(" --- From Interceptor, you are rejected.");
+
         return true;
     }
 

spring-interceptor/src/main/resources/hello.txt

@@ -0,0 +1 @@
+hello TXT

spring-interceptor/src/main/resources/service-context.xml

@@ -20,7 +20,7 @@
             </bean>
         </mvc:interceptor>
         <mvc:interceptor>
-            <mvc:mapping path="/**"/>
+            <mvc:mapping path="/user/**"/>
             <mvc:exclude-mapping path="/admin/**"/>
             <bean class="com.vonzhou.learning.interceptor.LogInterceptor"/>
         </mvc:interceptor>

spring-interceptor/src/main/webapp/WEB-INF/web.xml

@@ -26,4 +26,13 @@
             classpath:service-context.xml
         </param-value>
     </context-param>
+
+    <filter>
+        <filter-name>simpleFilter</filter-name>
+        <filter-class>com.vonzhou.learning.filter.SimpleServletFilter</filter-class>
+    </filter>
+    <filter-mapping>
+        <filter-name>simpleFilter</filter-name>
+        <url-pattern>/*</url-pattern>
+    </filter-mapping>
 </web-app>