添加head文件

src/main/java/com/bwei/cxh/servlet/DispatcherServlet.java

@@ -1,18 +1,18 @@
 package com.bwei.cxh.servlet;
 
-import com.bwei.cxh.EnjoyAutowired;
-import com.bwei.cxh.EnjoyController;
-import com.bwei.cxh.EnjoyRequestMapping;
-import com.bwei.cxh.EnjoyService;
+import com.bwei.cxh.*;
 import com.bwei.cxh.controller.CxhController;
 
 import javax.servlet.ServletConfig;
 import javax.servlet.ServletException;
+import javax.servlet.ServletRequest;
+import javax.servlet.ServletResponse;
 import javax.servlet.http.HttpServlet;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 import java.io.File;
 import java.io.IOException;
+import java.lang.annotation.Annotation;
 import java.lang.reflect.Field;
 import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;
@@ -89,6 +89,10 @@ public class DispatcherServlet extends HttpServlet {
                 }
             } catch (ClassNotFoundException e) {
                 e.printStackTrace();
+            } catch (InstantiationException e) {
+                throw new RuntimeException(e);
+            } catch (IllegalAccessException e) {
+                throw new RuntimeException(e);
             }
         }
     }
@@ -133,8 +137,32 @@ public class DispatcherServlet extends HttpServlet {
         }
     }
 
-    private Object[] hand(HttpServletRequest req, HttpServletResponse resp, Method method) {
-        return new Object[0];
+    private Object[] hand(HttpServletRequest request, HttpServletResponse response, Method method) {
+        Class<?>[] paramClazzs = method.getParameterTypes();
+        Object[] args = new Object[paramClazzs.length];
+        int args_i=0;
+        int index=0;
+        for (Class<?> paramClazz : paramClazzs) {
+            if (ServletRequest.class.isAssignableFrom(paramClazz)){
+                args[args_i++] =request;
+            }
+            if (ServletResponse.class.isAssignableFrom(paramClazz)){
+                args[args_i++]=response;
+            }
+            Annotation[] paramAns = method.getParameterAnnotations()[index];
+            if (paramAns.length>0){
+                for (Annotation paramAn : paramAns) {
+                    if (EnjoyRequestParam.class.isAssignableFrom(paramAn.getClass())){
+                        EnjoyRequestParam rp = (EnjoyRequestParam) paramAn;
+                        // 找到注解里的name和age
+                        args[args_i++]=request.getParameter(rp.value());
+                    }
+                }
+            }
+            index++;
+        }
+        return args;
+
     }