补完了前两周的作业和博客，博客地址在根目录的txt文件中

group24/330657387/.classpath

@@ -3,5 +3,6 @@
 	<classpathentry kind="src" path="src"/>
 	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/>
 	<classpathentry kind="con" path="org.eclipse.jdt.junit.JUNIT_CONTAINER/4"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.USER_LIBRARY/coding2017"/>
 	<classpathentry kind="output" path="bin"/>
 </classpath>

group24/330657387/src/main/week02/litestruts/CustomException.java

@@ -0,0 +1,21 @@
+package main.week02.litestruts;
+
+import java.io.IOException;
+
+import org.jdom2.JDOMException;
+
+public class CustomException extends RuntimeException {
+
+	public CustomException(IOException e) {
+		super(e.getMessage());
+	}
+
+	public CustomException(JDOMException e) {
+		super(e.getMessage());
+	}
+
+	public CustomException(String msg) {
+		super(msg);
+	}
+
+}

group24/330657387/src/main/week02/litestruts/LoginAction.java

@@ -0,0 +1,39 @@
+package main.week02.litestruts;
+
+/**
+ * 这是一个用来展示登录的业务类， 其中的用户名和密码都是硬编码的。
+ * @author liuxin
+ *
+ */
+public class LoginAction{
+    private String name ;
+    private String password;
+    private String message;
+
+    public String getName() {
+        return name;
+    }
+
+    public String getPassword() {
+        return password;
+    }
+
+    public String execute(){
+            if("test".equals(name) && "1234".equals(password)){
+                this.message = "login successful";
+                return "success";
+            }
+            this.message = "login failed,please check your user/pwd";
+            return "fail";
+    }
+
+    public void setName(String name){
+        this.name = name;
+    }
+    public void setPassword(String password){
+        this.password = password;
+    }
+    public String getMessage(){
+        return this.message;
+    }
+}

group24/330657387/src/main/week02/litestruts/Struts.java

@@ -0,0 +1,79 @@
+package main.week02.litestruts;
+
+import java.lang.reflect.Field;
+import java.lang.reflect.Method;
+import java.util.HashMap;
+import java.util.Map;
+
+public class Struts {
+
+	public static View runAction(String actionName,
+			Map<String, String> parameters) throws Exception,
+			NoSuchFieldException {
+
+		/*
+		 * 
+		 * 0. 读取配置文件struts.xml
+		 * 
+		 * 1. 根据actionName找到相对应的class ， 例如LoginAction, 通过反射实例化（创建对象）
+		 * 据parameters中的数据，调用对象的setter方法， 例如parameters中的数据是 ("name"="test" ,
+		 * "password"="1234") , 那就应该调用 setName和setPassword方法
+		 * 
+		 * 2. 通过反射调用对象的exectue 方法， 并获得返回值，例如"success"
+		 * 
+		 * 3. 通过反射找到对象的所有getter方法（例如 getMessage）, 通过反射来调用， 把值和属性形成一个HashMap , 例如
+		 * {"message": "登录成功"} , 放到View对象的parameters
+		 * 
+		 * 4. 根据struts.xml中的 <result> 配置,以及execute的返回值， 确定哪一个jsp，
+		 * 放到View对象的jsp字段中。
+		 */
+
+		XmlSaxUtil config = new XmlSaxUtil("struts.xml");
+		String classname = config.getClassName(actionName);
+		// 1 通过反射存入parameter
+		// 没有这个类名就报错
+		if (null == classname) {
+			throw new CustomException("没有这个action啊！");
+		}
+		// 通过反射获取实例
+		Class<?> controllerClass = Class.forName(classname);
+		// 创建实例
+		Object controller = controllerClass.newInstance();
+		// 获取类中声明的全部成员变量
+		Field[] fields = controllerClass.getDeclaredFields();
+		// 备用
+		Method m;
+		// 得到该action所有result的结果合集
+
+		// 为controller注入变量
+		for (String key : parameters.keySet()) {
+			for (Field f : fields) {
+				if (f.getName() == key) {
+					m = controllerClass.getMethod("set"
+							+ key.replace(key.substring(0, 1),key.substring(0, 1).toUpperCase()), String.class);
+					m.invoke(controller, parameters.get(key));
+					break;
+				}
+			}
+		}
+
+		// 2 通过反射调用excute 获取返回值
+		m = controllerClass.getMethod("execute");
+		String result = (String) m.invoke(controller);
+
+		// 3 把message放到View对象的parameters
+		View view = new View();
+		Map<String, String> viewParam = new HashMap<String, String>();
+
+		// 新建并传入View的viewParam属性值
+		m = controllerClass.getMethod("getMessage");
+		viewParam.put("message", (String) m.invoke(controller));
+		view.setParameters(viewParam);
+
+		// 传入jsp路径
+		view.setJsp(config.getResultView(actionName, result));
+
+		return view;
+	}
+
+}

group24/330657387/src/main/week02/litestruts/StrutsTest.java

@@ -0,0 +1,39 @@
+package main.week02.litestruts;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+public class StrutsTest {
+
+	@Test
+	public void testLoginActionSuccess() throws Exception {
+
+		String actionName = "login";
+
+		Map<String,String> params = new HashMap<String,String>();
+        params.put("name","test");
+        params.put("password","1234");
+
+
+        View view  = Struts.runAction(actionName,params);        
+
+        Assert.assertEquals("/jsp/homepage.jsp", view.getJsp());
+        Assert.assertEquals("login successful", view.getParameters().get("message"));
+	}
+
+	@Test
+	public void testLoginActionFailed() throws Exception {
+		String actionName = "login";
+		Map<String,String> params = new HashMap<String,String>();
+        params.put("name","test");
+        params.put("password","123456"); //密码和预设的不一致
+
+        View view  = Struts.runAction(actionName,params);        
+
+        Assert.assertEquals("/jsp/showLogin.jsp", view.getJsp());
+        Assert.assertEquals("login failed,please check your user/pwd", view.getParameters().get("message"));
+	}
+}

group24/330657387/src/main/week02/litestruts/View.java

@@ -0,0 +1,23 @@
+package main.week02.litestruts;
+
+import java.util.Map;
+
+public class View {
+	private String jsp;
+	private Map parameters;
+
+	public String getJsp() {
+		return jsp;
+	}
+	public View setJsp(String jsp) {
+		this.jsp = jsp;
+		return this;
+	}
+	public Map getParameters() {
+		return parameters;
+	}
+	public View setParameters(Map parameters) {
+		this.parameters = parameters;
+		return this;
+	}
+}

group24/330657387/src/main/week02/litestruts/XmlDomUtil.java

@@ -0,0 +1,24 @@
+package main.week02.litestruts;
+
+public class XmlDomUtil {
+	/*// 0 读取xml文档的元素值
+	// 获取工厂
+	DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
+	// 产生解析器
+	DocumentBuilder builder = factory.newDocumentBuilder();
+	// 解析xml文档，得到代表文档的document对象
+	Document document = builder.parse(new File(
+			"./src/main/week02/litestruts/struts.xml"));
+	// 根据标签名获取节点列表
+	NodeList actionList = document.getElementsByTagName("action");*/
+
+	/*		HashMap<String, String> actionMap = new HashMap<String, String>();*/
+
+	/*for (int i = 0; i < actionList.getLength(); i++) {
+		// 获取节点列表里的节点
+		Element action = (Element) actionList.item(i);
+		// 获取节点的属性值
+		actionMap.put(action.getAttribute("name"),
+				action.getAttribute("class"));
+	}*/
+}

group24/330657387/src/main/week02/litestruts/XmlSaxUtil.java

@@ -0,0 +1,115 @@
+package main.week02.litestruts;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.HashMap;
+import java.util.Map;
+
+import org.jdom2.Document;
+import org.jdom2.Element;
+import org.jdom2.JDOMException;
+import org.jdom2.input.SAXBuilder;
+
+public class XmlSaxUtil {
+
+	Map<String, ActionConfig> actions = new HashMap<>();
+
+	public XmlSaxUtil(String fileName) {
+		// 得到包名
+		String packageName = this.getClass().getPackage().getName();
+		// 把包名转化成路径的一部分
+		packageName = packageName.replace('.', '/');
+		// 基于流的sax方式解析，需要先给出流，从类的同地址下找文件。
+		InputStream is = this.getClass().getResourceAsStream(
+				"/" + packageName + "/" + fileName);
+
+		parseXML(is);
+
+		try {
+			is.close();
+		} catch (IOException e) {
+			throw new CustomException(e);
+		}
+	}
+
+	private void parseXML(InputStream is) {
+		// 解析器工厂
+		SAXBuilder builder = new SAXBuilder();
+
+		try {
+			// 获取xml文件对象
+			Document doc = builder.build(is);
+			// 根节点
+			Element root = doc.getRootElement();
+
+			for (Element actionElement : root.getChildren("action")) {
+
+				String actionName = actionElement.getAttributeValue("name");
+				String clzName = actionElement.getAttributeValue("class");
+
+				ActionConfig ac = new ActionConfig(actionName, clzName);
+
+				for (Element resultElement : actionElement
+						.getChildren("result")) {
+
+					String resultName = resultElement.getAttributeValue("name");
+					String viewName = resultElement.getText().trim();
+
+					ac.addViewResult(resultName, viewName);
+
+				}
+
+				this.actions.put(actionName, ac);
+			}
+
+		} catch (JDOMException e) {
+			throw new CustomException(e);
+
+		} catch (IOException e) {
+			throw new CustomException(e);
+
+		}
+
+	}
+
+	public String getClassName(String action) {
+		ActionConfig ac = this.actions.get(action);
+		if (ac == null) {
+			return null;
+		}
+		return ac.getClassName();
+	}
+
+	public String getResultView(String action, String resultName) {
+		ActionConfig ac = this.actions.get(action);
+		if (ac == null) {
+			return null;
+		}
+		return ac.getViewName(resultName);
+	}
+
+	private static class ActionConfig {
+
+		String name;
+		String clzName;
+		Map<String, String> viewResult = new HashMap<>();
+
+		public ActionConfig(String actionName, String clzName) {
+			this.name = actionName;
+			this.clzName = clzName;
+		}
+
+		public String getClassName() {
+			return clzName;
+		}
+
+		public void addViewResult(String name, String viewName) {
+			viewResult.put(name, viewName);
+		}
+
+		public String getViewName(String resultName) {
+			return viewResult.get(resultName);
+		}
+	}
+
+}

group24/330657387/src/main/week02/litestruts/struts.xml

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<struts>
+    <action name="login" class="main.week02.litestruts.LoginAction">
+        <result name="success">/jsp/homepage.jsp</result>
+        <result name="fail">/jsp/showLogin.jsp</result>
+    </action>
+    <action name="logout" class="main.week02.litestruts.LogoutAction">
+    	<result name="success">/jsp/welcome.jsp</result>
+    	<result name="error">/jsp/error.jsp</result>
+    </action>
+</struts>