实现Controller类控制器和初始化框架

framework/src/main/java/com/custom/framework/bean/Handler.java

@@ -0,0 +1,34 @@
+package com.custom.framework.bean;
+
+import java.lang.reflect.Method;
+
+/**
+ * 封装Action信息
+ * @author liuyi
+ * @date 2018/10/27
+ */
+public class Handler {
+
+ /**
+ * Controller类
+ */
+ private Class<?> controllerClass;
+
+ /**
+ * Action方法
+ */
+ private Method actionMethod;
+
+ public Handler(Class<?> controllerClass, Method actionMethod) {
+ this.controllerClass = controllerClass;
+ this.actionMethod = actionMethod;
+ }
+
+ public Class<?> getControllerClass() {
+ return controllerClass;
+ }
+
+ public Method getActionMethod() {
+ return actionMethod;
+ }
+}

framework/src/main/java/com/custom/framework/bean/Request.java

@@ -0,0 +1,45 @@
+package com.custom.framework.bean;
+
+import org.apache.commons.lang3.builder.EqualsBuilder;
+import org.apache.commons.lang3.builder.HashCodeBuilder;
+
+/**
+ * 封装请求信息
+ * @author liuyi
+ * @date 2018/10/27
+ */
+public class Request {
+
+ /**
+ * 请求方法
+ */
+ private String requestMethod;
+
+ /**
+ * 请求路径
+ */
+ private String requestPath;
+
+ public Request(String requestMethod, String requestPath) {
+ this.requestMethod = requestMethod;
+ this.requestPath = requestPath;
+ }
+
+ public String getRequestMethod() {
+ return requestMethod;
+ }
+
+ public String getRequestPath() {
+ return requestPath;
+ }
+
+ @Override
+ public int hashCode() {
+ return HashCodeBuilder.reflectionHashCode(this);
+ }
+
+ @Override
+ public boolean equals(Object obj) {
+ return EqualsBuilder.reflectionEquals(this, obj);
+ }
+}

framework/src/main/java/com/custom/framework/helper/BeanHelper.java

@@ -11,7 +11,7 @@
  * @author liuyi
  * @date 2018/10/25
  */
-public class BeanHelper {
+public final class BeanHelper {
 
  /**
  * 定义Bean映射（用于存放Bean类与Bean实例的映射关系）

framework/src/main/java/com/custom/framework/helper/ControllerHelper.java

@@ -0,0 +1,74 @@
+package com.custom.framework.helper;
+
+import com.custom.framework.annotation.Action;
+import com.custom.framework.annotation.Controller;
+import com.custom.framework.bean.Handler;
+import com.custom.framework.bean.Request;
+import com.custom.framework.util.ArrayUtil;
+import com.custom.framework.util.CollectionUtil;
+
+import java.lang.reflect.Method;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Set;
+
+/**
+ * 控制器助手类
+ * @author liuyi
+ * @date 2018/10/27
+ */
+public final class ControllerHelper {
+
+ /**
+ * 用于存放请求与处理器的映射关系（简称 Action Map）
+ */
+ private static final Map<Request, Handler> ACTION_MAP = new HashMap<>();
+
+ static {
+ //获取所有Controller类
+ Set<Class<?>> controlllerClassSet = ClassHelper.getControllerClassSet();
+ if (CollectionUtil.isNotEmpty(controlllerClassSet)) {
+ //遍历这些Controller类
+ for (Class<?> controllerClass : controlllerClassSet) {
+ //获取Controller类中的方法
+ Method[] methods = controllerClass.getDeclaredMethods();
+ if (ArrayUtil.isNotEmpty(methods)) {
+ //遍历类中的方法
+ for (Method method : methods) {
+ //判断当前方法是否带有Action注解
+ if (method.isAnnotationPresent(Action.class)) {
+ //从Action注解中获取 URL 映射规则
+ Action action = method.getAnnotation(Action.class);
+ String mapping = action.value();
+ //验证 URL 映射规则
+ if (mapping.matches("\\w+:/\\w*")) {
+ String[] array = mapping.split(":");
+ if (ArrayUtil.isNotEmpty(array) && array.length == 2) {
+ //获取请求方法与请求路径
+ String requestMethod = array[0];
+ String requestPath = array[1];
+ Request request = new Request(requestMethod, requestPath);
+ Handler handler = new Handler(Controller.class, method);
+ //构建初始化Action Map
+ ACTION_MAP.put(request, handler);
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+
+ /**
+ * 获取Handler
+ * @param requestMethod
+ * @param requestPath
+ * @return
+ */
+ public static Handler getHandler(String requestMethod, String requestPath) {
+ Request request = new Request(requestMethod, requestPath);
+ return ACTION_MAP.get(request);
+ }
+
+}

framework/src/main/java/com/custom/framework/helper/HelperLoader.java

@@ -0,0 +1,24 @@
+package com.custom.framework.helper;
+
+import com.custom.framework.annotation.Controller;
+import com.custom.framework.util.ClassUtil;
+
+/**
+ *
+ * @author liuyi
+ * @date 2018/10/28
+ */
+public final class HelperLoader {
+
+ public static void init() {
+ Class<?>[] classList = {
+ ClassHelper.class,
+ BeanHelper.class,
+ IocHelper.class,
+ Controller.class
+ };
+ for (Class<?> cls : classList) {
+ ClassUtil.loadClass(cls.getName(),true);
+ }
+ }
+}

framework/src/main/java/com/custom/framework/helper/IocHelper.java

@@ -14,7 +14,7 @@
  * @author liuyi
  * @date 2018/10/27
  */
-public class IocHelper {
+public final class IocHelper {
 
  static {
  //获取所有的Bean类与Bean实例之间的映射关系（简称BeanMap）

framework/src/main/java/com/custom/framework/util/CollectionUtil.java

@@ -1,6 +1,8 @@
 package com.custom.framework.util;
 
 import java.util.Map;
+import java.util.Set;
+
 /**
  * @author liuyi
  * @date 2018/10/27
@@ -13,4 +15,11 @@ public static boolean isNotEmpty(Map<Class<?>, Object> map) {
  }
  return true;
  }
+
+ public static boolean isNotEmpty(Set<Class<?>> set) {
+ if (set.isEmpty()) {
+ return false;
+ }
+ return true;
+ }
 }