diff --git a/group24/798277403/out/production/zhouliang/week2/litestruts/struts.xml b/group24/798277403/out/production/zhouliang/week2/litestruts/struts.xml
new file mode 100644
index 0000000000..54550a4174
--- /dev/null
+++ b/group24/798277403/out/production/zhouliang/week2/litestruts/struts.xml
@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<struts>
+    <action name="login" class="week2.litestruts.LoginAction">
+        <result name="success">/jsp/homepage.jsp</result>
+        <result name="fail">/jsp/showLogin.jsp</result>
+    </action>
+    <action name="logout" class="week2.litestruts.LogoutAction">
+    	<result name="success">/jsp/welcome.jsp</result>
+    	<result name="error">/jsp/error.jsp</result>
+    </action>
+</struts>
diff --git a/group24/798277403/src/week2/array/ArrayUtil.java b/group24/798277403/src/week2/array/ArrayUtil.java
new file mode 100644
index 0000000000..04c03f95e0
--- /dev/null
+++ b/group24/798277403/src/week2/array/ArrayUtil.java
@@ -0,0 +1,235 @@
+package week2.array;
+
+import java.util.Arrays;
+
+
+class ArrayUtil {
+
+    /**
+	 * 给定一个整形数组a , 对该数组的值进行置换
+		例如： a = [7, 9 , 30, 3]  ,   置换后为 [3, 30, 9,7]
+		如果     a = [7, 9, 30, 3, 4] , 置换后为 [4,3, 30 , 9,7]
+	 * @param origin 原数组
+	 */
+	void reverseArray(int[] origin){
+        if(origin!=null && origin.length>0){
+            int i, n;
+            for(i=0, n=origin.length-1; i<origin.length/2; i++,n--){
+                int temp;
+                temp = origin[i];
+                origin[i] = origin[n];
+                origin[n] = temp;
+            }
+        }
+	}
+	
+	/**
+	 * 现在有如下的一个数组：   int oldArr[]={1,3,4,5,0,0,6,6,0,5,4,7,6,7,0,5}   
+	 * 要求将以上数组中值为0的项去掉，将不为0的值存入一个新的数组，生成的新数组为：   
+	 * {1,3,4,5,6,6,5,4,7,6,7,5}  
+	 * @param oldArray 原数组
+	 * @return 返回去掉0的新数字
+	 */
+	int[] removeZero(int[] oldArray){
+        if(oldArray!=null && oldArray.length>0) {
+            int index = 0;
+            int length = 0;
+            int[] temp = new int[oldArray.length];
+            for(int i=0; i<oldArray.length; i++){
+                if(oldArray[i]!=0){
+                    temp[index++] = oldArray[i];
+                }else{
+                    length++;
+                }
+            }
+            return Arrays.copyOf(temp,temp.length-length);
+        }else{
+            return null;
+        }
+	}
+	
+	/**
+	 * 给定两个已经排序好的整形数组， a1和a2 ,  创建一个新的数组a3, 使得a3 包含a1和a2 的所有元素， 并且仍然是有序的
+	 * 例如 a1 = [3, 5, 7,8]   a2 = [4, 5, 6,7]    则 a3 为[3,4,5,6,7,8]    , 注意： 已经消除了重复
+	 * @param array1 第一个数组
+	 * @param array2 第二个数组
+	 * @return 整合的数组
+	 */
+	int[] merge(int[] array1, int[] array2){
+        if(array1!=null && array2!=null){
+            int length = array1.length+ array2.length;
+            int[] merges = new int[length];
+            int i, j, index, split;
+            split = index = 0;
+            for(i=0,j=0; i<array1.length&&j<array2.length; index++){
+                if(array1[i]<array2[j]){
+                    merges[index] = array1[i];
+                    i++;
+                }else if(array1[i]>array2[j]){
+                    merges[index] = array2[j];
+                    j++;
+                }else{
+                    merges[index] = array2[j];
+                    i++;
+                    j++;
+                    split++;
+                }
+            }
+            while(i<array1.length){
+                if(array1[i]==merges[index-1]){
+                    split++;
+                    i++;
+                }else{
+                    merges[index++] = array1[i++];
+
+                }
+            }
+            while(j<array2.length){
+                if(array2[j]==merges[index-1]){
+                    split++;
+                    j++;
+                }else{
+                    merges[index++] = array2[j++];
+
+                }
+            }
+            return  Arrays.copyOf(merges,merges.length-split);
+        }else{
+            return null;
+        }
+
+	}
+
+	/**
+	 * 把一个已经存满数据的数组 oldArray的容量进行扩展， 扩展后的新数据大小为oldArray.length + size
+	 * 注意，老数组的元素在新数组中需要保持
+	 * 例如 oldArray = [2,3,6] , size = 3,则返回的新数组为
+	 * [2,3,6,0,0,0]
+	 * @param oldArray 原数组
+	 * @param size 大小
+	 * @return 扩容后的数组
+	 */
+	int[] grow(int [] oldArray,  int size){
+        if(oldArray==null){
+            return null;
+        }
+		return Arrays.copyOf(oldArray,oldArray.length+size);
+	}
+	
+	/**
+	 * 斐波那契数列为：1，1，2，3，5，8，13，21......  ，给定一个最大值， 返回小于该值的数列
+	 * 例如， max = 15 , 则返回的数组应该为 [1，1，2，3，5，8，13]
+	 * max = 1, 则返回空数组 []
+	 * @param max 最大值
+	 * @return 斐波那契数组
+	 */
+	 int[] fibonacci(int max){
+		int[] result = new int[max];
+        if(max==1){
+            return new int[0];
+        }
+        if(max<=0){
+			return null;
+		}
+
+        int i = 1;
+		int j = 0;
+		while(j<max){
+			j = fibonac(i);
+			if(j<max) {
+				result[i-1] = j;
+				i++;
+			}
+		}
+		return Arrays.copyOf(result,i-1);
+	}
+
+	private static int fibonac(int n){
+		if(n==1||n==2){
+			return 1;
+		}else{
+			return fibonac(n-1)+fibonac(n-2);
+		}
+	}
+	
+	/**
+	 * 返回小于给定最大值max的所有素数数组
+	 * 例如max = 23, 返回的数组为[2,3,5,7,11,13,17,19]
+	 * @param max 最大值
+	 * @return 小于给定最大值max的所有素数数组
+	 */
+	 int[] getPrimes(int max){
+		 if(max<=1){
+			 return null;
+		 }
+		int[] result = new int[max];
+		int index = 0;
+		for(int i=2; i<max; i++){
+			boolean flag = true;
+			for(int j=2; j<Math.sqrt(i); j++){
+				if(i%j==0){
+					flag = false;
+					break;
+				}
+			}
+			if(flag){
+				result[index++] = i;
+			}
+		}
+		return Arrays.copyOf(result,index);
+	}
+
+	/**
+	 * 所谓“完数”， 是指这个数恰好等于它的因子之和，例如6=1+2+3
+	 * 给定一个最大值max， 返回一个数组， 数组中是小于max 的所有完数
+	 * @param max 最大值max
+	 * @return 返回一个数组， 数组中是小于max 的所有完数
+	 */
+	int[] getPerfectNumbers(int max){
+		if(max<=0){
+			return null;
+		}
+		int[] result = new int[max];
+		int length = 0;
+		for(int i=1; i<max; i++){
+			if(checkPerfectNumbers(i)){
+				result[length++] = i;
+			}
+		}
+		return Arrays.copyOf(result, length);
+	}
+
+	private  boolean checkPerfectNumbers(int num){
+		int total  = 0;
+		for(int i=1; i<num; i++){
+			if(num%i==0){
+				total += i;
+			}
+		}
+		return total==num ;
+	}
+	
+	/**
+	 * 用seperator 把数组 array给连接起来
+	 * 例如array= [3,8,9], seperator = "-"
+	 * 则返回值为"3-8-9"
+	 * @param array  数组
+	 * @param seperator  连接符
+	 * @return 连接后的数组
+	 */
+	String join(int[] array, String seperator){
+		if(array.length>0) {
+			StringBuffer stringBuffer = new StringBuffer();
+			for (int i = 0; i < array.length; i++) {
+				stringBuffer.append(array[i]);
+				if (i != array.length - 1) {
+					stringBuffer.append(seperator);
+				}
+			}
+			return stringBuffer.toString();
+		}else{
+			return null;
+		}
+	}
+
+}
diff --git a/group24/798277403/src/week2/array/ArrayUtilTest.java b/group24/798277403/src/week2/array/ArrayUtilTest.java
new file mode 100644
index 0000000000..77c99242fa
--- /dev/null
+++ b/group24/798277403/src/week2/array/ArrayUtilTest.java
@@ -0,0 +1,92 @@
+package week2.array;
+
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+
+import java.util.Random;
+
+/**
+ * Created by zhouliang on 2017-03-13.
+ */
+public class ArrayUtilTest {
+    private int[] array;
+    private ArrayUtil arrayUtil ;
+    private int SIZE = 11;
+
+    @Before
+    public void setUp() throws Exception {
+        arrayUtil = new ArrayUtil();
+        array = new int[SIZE];
+        Random random = new Random();
+
+        for(int i=0; i<array.length; i++){
+            array[i] = random.nextInt(100);
+        }
+       /* System.out.println("原数组");
+        for(int i=0; i<array.length; i++){
+            System.out.print(array[i]+" ");
+        }
+        System.out.println();*/
+    }
+
+    @Test
+    public void reverseArray() throws Exception {
+        System.out.println("转置数组");
+        arrayUtil.reverseArray(array);
+        for(int i=0; i<array.length; i++){
+            System.out.print(array[i]+" ");
+        }
+    }
+
+    @Test
+    public void removeZero() throws Exception {
+        int oldArr[]={1,3,4,5,0,0,6,6,0,5,4,7,6,7,0,5};
+        System.out.println("去掉0的数组");
+        int[] news = arrayUtil.removeZero(oldArr);
+        for(int i=0; i<news.length; i++){
+            System.out.print(news[i]+" ");
+        }
+    }
+
+    @Test
+    public void merge() throws Exception {
+        int[] a1 = {3, 5, 7,8,9,9};
+        int[] a2 = {4, 5, 6,7};
+        int[] a3 = {3,4,5,6,7,8,8,8,8,8,8};
+        int[] arr = arrayUtil.merge(a1,a2);
+        for(int i=0;i<arr.length;i++){
+            System.out.print(arr[i]+" ");
+        }
+    }
+
+    @Test
+    public void grow() throws Exception {
+        int[] result = arrayUtil.grow(array,5);
+        Assert.assertEquals(array.length+5,result.length);
+        for(int i=0;i<result.length;i++){
+            System.out.print(result[i]+" ");
+        }
+    }
+
+    @Test
+    public void fibonacci() throws Exception {
+
+    }
+
+    @Test
+    public void getPrimes() throws Exception {
+
+    }
+
+    @Test
+    public void getPerfectNumbers() throws Exception {
+
+    }
+
+    @Test
+    public void join() throws Exception {
+
+    }
+
+}
\ No newline at end of file
diff --git a/group24/798277403/src/week2/litestruts/LoginAction.java b/group24/798277403/src/week2/litestruts/LoginAction.java
new file mode 100644
index 0000000000..f819fd3aa3
--- /dev/null
+++ b/group24/798277403/src/week2/litestruts/LoginAction.java
@@ -0,0 +1,41 @@
+package week2.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;
+    }
+}
diff --git a/group24/798277403/src/week2/litestruts/Struts.java b/group24/798277403/src/week2/litestruts/Struts.java
new file mode 100644
index 0000000000..4063dcda68
--- /dev/null
+++ b/group24/798277403/src/week2/litestruts/Struts.java
@@ -0,0 +1,155 @@
+package week2.litestruts;
+
+import org.w3c.dom.Document;
+import org.w3c.dom.NamedNodeMap;
+import org.w3c.dom.Node;
+import org.w3c.dom.NodeList;
+import org.xml.sax.SAXException;
+
+import javax.xml.parsers.DocumentBuilder;
+import javax.xml.parsers.DocumentBuilderFactory;
+import javax.xml.parsers.ParserConfigurationException;
+import java.io.IOException;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Set;
+
+/*
+
+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。
+
+*/
+public class Struts {
+
+    public static View runAction(String actionName, Map<String, String> parameters)  {
+
+        DocumentBuilderFactory documentBuilderFactory = DocumentBuilderFactory.newInstance();
+        DocumentBuilder db = null;
+        Class<?> actionClass = null;
+        LoginAction loginAction = null;
+        View view = new View();
+        try {
+            db = documentBuilderFactory.newDocumentBuilder();
+            Document document = db.parse("src/week2/litestruts/struts.xml");
+            NodeList nodeList = document.getElementsByTagName("action");
+
+            //遍历每一个action节点
+            for (int i = 0; i < nodeList.getLength(); i++) {
+                Node node = nodeList.item(i);
+                //获取action节点的所有属性集合
+                NamedNodeMap attrs = node.getAttributes();
+                //获取name结点的值
+                String nodeName = attrs.getNamedItem("name").getNodeValue();
+
+                if(nodeName.equals(actionName)){
+                    //获取LoginAction实例
+                    actionClass = Class.forName(attrs.getNamedItem("class").getNodeValue());
+                    loginAction = (LoginAction) actionClass.newInstance();
+
+                    //设置用户名密码属性
+                    Set<Map.Entry<String, String>> entrySet = parameters.entrySet();
+                    for (Map.Entry<String, String> entry : entrySet) {
+                        if (entry.getKey().equals("name")) {
+                            loginAction.setName(entry.getValue());
+                        }
+                        if (entry.getKey().equals("password")) {
+                            loginAction.setPassword(entry.getValue());
+                        }
+                    }
+
+                    //执行execute()方法
+                    String result = loginAction.execute();
+
+                    //将message封装到view
+                    String message = loginAction.getMessage();
+                    Map<String,String> map = new HashMap<String,String>();
+                    map.put("message",message);
+                    view.setParameters(map);
+
+                    //解析对应的result节点
+                    NodeList childNodes = node.getChildNodes();
+                    //遍历childNodes获取每个节点的节点名和节点值
+                    for (int k = 0; k < childNodes.getLength(); k++) {
+                        Node childNode = childNodes.item(k);
+                        //区分出text类型的node以及element类型的node
+                        if (childNode.getNodeType() == Node.ELEMENT_NODE) {
+                            NamedNodeMap attributes = childNode.getAttributes();
+                            String nodeValue = attributes.getNamedItem("name").getNodeValue();
+                            if(nodeValue.equals(result)){
+                                view.setJsp(childNode.getTextContent());
+                            }
+                        }
+
+                    }
+
+                }
+
+            }
+        } catch (ParserConfigurationException | SAXException | IOException | ClassNotFoundException | InstantiationException | IllegalAccessException e) {
+            e.printStackTrace();
+        }
+
+        return view;
+    }
+
+/*    DocumentBuilderFactory documentBuilderFactory = DocumentBuilderFactory.newInstance();
+    DocumentBuilder db = null;
+    Class<?> actionClass = null;
+    LoginAction loginAction = null;
+        try {
+        db = documentBuilderFactory.newDocumentBuilder();
+        Document document = db.parse("src/week2/litestruts/struts.xml");
+        NodeList nodeList = document.getElementsByTagName("action");
+        System.out.println("一共有" + nodeList.getLength() + "个结点");
+        //遍历每一个action节点
+        for (int i = 0; i < nodeList.getLength(); i++) {
+            Node node = nodeList.item(i);
+            //获取action节点的所有属性集合
+            NamedNodeMap attrs = node.getAttributes();
+            //遍历action的属性
+            for (int j = 0; j < attrs.getLength(); j++) {
+                //通过item(index)方法获取book节点的某一个属性
+                Node attr = attrs.item(j);
+                String name = attrs.getNamedItem("name").getNodeValue();
+                System.out.println("++++++++++"+name);
+                //获取属性名
+                System.out.print("属性名：" + attr.getNodeName());
+                //获取属性值
+                System.out.println("--属性值" + attr.getNodeValue());
+                if(attr.getNodeName().equals(actionName)){
+                    actionClass = Class.forName(attr.getNodeValue());
+                    loginAction = (LoginAction) actionClass.newInstance();
+                }
+            }
+            //解析book节点的子节点
+            NodeList childNodes = node.getChildNodes();
+            //遍历childNodes获取每个节点的节点名和节点值
+            for (int k = 0; k < childNodes.getLength(); k++) {
+                //区分出text类型的node以及element类型的node
+                if (childNodes.item(k).getNodeType() == Node.ELEMENT_NODE) {
+                    //获取了element类型节点的节点名
+                    System.out.print(childNodes.item(k).getNodeName());
+                    //获取了element类型节点的节点值
+                    System.out.println("--节点值是：" + childNodes.item(k).getFirstChild().getNodeValue());
+                    System.out.println("--节点值是：" + childNodes.item(k).getTextContent());
+                }
+            }
+        }
+    } catch (ParserConfigurationException | SAXException | IOException | ClassNotFoundException | InstantiationException | IllegalAccessException e) {
+        e.printStackTrace();
+    }*/
+}
\ No newline at end of file
diff --git a/group24/798277403/src/week2/litestruts/StrutsTest.java b/group24/798277403/src/week2/litestruts/StrutsTest.java
new file mode 100644
index 0000000000..5c4379d912
--- /dev/null
+++ b/group24/798277403/src/week2/litestruts/StrutsTest.java
@@ -0,0 +1,43 @@
+package week2.litestruts;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+import java.util.HashMap;
+import java.util.Map;
+
+
+
+
+
+public class StrutsTest {
+
+	@Test
+	public void testLoginActionSuccess() {
+		
+		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() {
+		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"));
+	}
+}
diff --git a/group24/798277403/src/week2/litestruts/View.java b/group24/798277403/src/week2/litestruts/View.java
new file mode 100644
index 0000000000..01a422a808
--- /dev/null
+++ b/group24/798277403/src/week2/litestruts/View.java
@@ -0,0 +1,23 @@
+package week2.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;
+	}
+}
diff --git a/group24/798277403/src/week2/litestruts/struts.xml b/group24/798277403/src/week2/litestruts/struts.xml
new file mode 100644
index 0000000000..54550a4174
--- /dev/null
+++ b/group24/798277403/src/week2/litestruts/struts.xml
@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<struts>
+    <action name="login" class="week2.litestruts.LoginAction">
+        <result name="success">/jsp/homepage.jsp</result>
+        <result name="fail">/jsp/showLogin.jsp</result>
+    </action>
+    <action name="logout" class="week2.litestruts.LogoutAction">
+    	<result name="success">/jsp/welcome.jsp</result>
+    	<result name="error">/jsp/error.jsp</result>
+    </action>
+</struts>