Skip to content

Commit

Permalink
Merge pull request #2 from justtree/master
Browse files Browse the repository at this point in the history
565832157 测试提交 未做完
  • Loading branch information
Mr-ChangK authored Mar 11, 2017
2 parents 4cb878d + 33f1055 commit 36ff590
Show file tree
Hide file tree
Showing 22 changed files with 729 additions and 0 deletions.
96 changes: 96 additions & 0 deletions group23/565832157/src/com/coderising/array/ArrayUtil.java
Original file line number Diff line number Diff line change
@@ -0,0 +1,96 @@
package com.coderising.array;

public 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
* @return
*/
public void reverseArray(int[] origin){

}

/**
* 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
* @return
*/

public int[] removeZero(int[] oldArray){
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
* @param array2
* @return
*/

public int[] merge(int[] array1, int[] array2){
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
* @param size
* @return
*/
public int[] grow(int [] oldArray, int size){
return null;
}

/**
* 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
* @return
*/
public int[] fibonacci(int max){
return null;
}

/**
* 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
* @return
*/
public int[] getPrimes(int max){
return null;
}

/**
* 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
* @return
*/
public int[] getPerfectNumbers(int max){
return null;
}

/**
* 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
* @param s
* @return
*/
public String join(int[] array, String seperator){
return null;
}


}
20 changes: 20 additions & 0 deletions group23/565832157/src/com/coderising/download/DownloadThread.java
Original file line number Diff line number Diff line change
@@ -0,0 +1,20 @@
package com.coderising.download;

import com.coderising.download.api.Connection;

public class DownloadThread extends Thread{

Connection conn;
int startPos;
int endPos;

public DownloadThread( Connection conn, int startPos, int endPos){

this.conn = conn;
this.startPos = startPos;
this.endPos = endPos;
}
public void run(){

}
}
73 changes: 73 additions & 0 deletions group23/565832157/src/com/coderising/download/FileDownloader.java
Original file line number Diff line number Diff line change
@@ -0,0 +1,73 @@
package com.coderising.download;

import com.coderising.download.api.Connection;
import com.coderising.download.api.ConnectionException;
import com.coderising.download.api.ConnectionManager;
import com.coderising.download.api.DownloadListener;


public class FileDownloader {

String url;

DownloadListener listener;

ConnectionManager cm;


public FileDownloader(String _url) {
this.url = _url;

}

public void execute(){
// 在这里实现你的代码, 注意: 需要用多线程实现下载
// 这个类依赖于其他几个接口, 你需要写这几个接口的实现代码
// (1) ConnectionManager , 可以打开一个连接,通过Connection可以读取其中的一段(用startPos, endPos来指定)
// (2) DownloadListener, 由于是多线程下载, 调用这个类的客户端不知道什么时候结束,所以你需要实现当所有
// 线程都执行完以后, 调用listener的notifiedFinished方法, 这样客户端就能收到通知。
// 具体的实现思路:
// 1. 需要调用ConnectionManager的open方法打开连接, 然后通过Connection.getContentLength方法获得文件的长度
// 2. 至少启动3个线程下载, 注意每个线程需要先调用ConnectionManager的open方法
// 然后调用read方法, read方法中有读取文件的开始位置和结束位置的参数, 返回值是byte[]数组
// 3. 把byte数组写入到文件中
// 4. 所有的线程都下载完成以后, 需要调用listener的notifiedFinished方法

// 下面的代码是示例代码, 也就是说只有一个线程, 你需要改造成多线程的。
Connection conn = null;
try {

conn = cm.open(this.url);

int length = conn.getContentLength();

new DownloadThread(conn,0,length-1).start();

} catch (ConnectionException e) {
e.printStackTrace();
}finally{
if(conn != null){
conn.close();
}
}




}

public void setListener(DownloadListener listener) {
this.listener = listener;
}



public void setConnectionManager(ConnectionManager ucm){
this.cm = ucm;
}

public DownloadListener getListener(){
return this.listener;
}

}
Original file line number Diff line number Diff line change
@@ -0,0 +1,59 @@
package com.coderising.download;

import org.junit.After;
import org.junit.Before;
import org.junit.Test;

import com.coderising.download.api.ConnectionManager;
import com.coderising.download.api.DownloadListener;
import com.coderising.download.impl.ConnectionManagerImpl;

public class FileDownloaderTest {
boolean downloadFinished = false;
@Before
public void setUp() throws Exception {
}

@After
public void tearDown() throws Exception {
}

@Test
public void testDownload() {

String url = "http://localhost:8080/test.jpg";

FileDownloader downloader = new FileDownloader(url);


ConnectionManager cm = new ConnectionManagerImpl();
downloader.setConnectionManager(cm);

downloader.setListener(new DownloadListener() {
@Override
public void notifyFinished() {
downloadFinished = true;
}

});


downloader.execute();

// 等待多线程下载程序执行完毕
while (!downloadFinished) {
try {
System.out.println("还没有下载完成,休眠五秒");
//休眠5秒
Thread.sleep(5000);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
System.out.println("下载完成!");



}

}
23 changes: 23 additions & 0 deletions group23/565832157/src/com/coderising/download/api/Connection.java
Original file line number Diff line number Diff line change
@@ -0,0 +1,23 @@
package com.coderising.download.api;

import java.io.IOException;

public interface Connection {
/**
* 给定开始和结束位置, 读取数据, 返回值是字节数组
* @param startPos 开始位置, 从0开始
* @param endPos 结束位置
* @return
*/
public byte[] read(int startPos,int endPos) throws IOException;
/**
* 得到数据内容的长度
* @return
*/
public int getContentLength();

/**
* 关闭连接
*/
public void close();
}
Original file line number Diff line number Diff line change
@@ -0,0 +1,5 @@
package com.coderising.download.api;

public class ConnectionException extends Exception {

}
Original file line number Diff line number Diff line change
@@ -0,0 +1,10 @@
package com.coderising.download.api;

public interface ConnectionManager {
/**
* 给定一个url , 打开一个连接
* @param url
* @return
*/
public Connection open(String url) throws ConnectionException;
}
Original file line number Diff line number Diff line change
@@ -0,0 +1,5 @@
package com.coderising.download.api;

public interface DownloadListener {
public void notifyFinished();
}
Original file line number Diff line number Diff line change
@@ -0,0 +1,27 @@
package com.coderising.download.impl;

import java.io.IOException;

import com.coderising.download.api.Connection;

public class ConnectionImpl implements Connection{

@Override
public byte[] read(int startPos, int endPos) throws IOException {

return null;
}

@Override
public int getContentLength() {

return 0;
}

@Override
public void close() {


}

}
Original file line number Diff line number Diff line change
@@ -0,0 +1,15 @@
package com.coderising.download.impl;

import com.coderising.download.api.Connection;
import com.coderising.download.api.ConnectionException;
import com.coderising.download.api.ConnectionManager;

public class ConnectionManagerImpl implements ConnectionManager {

@Override
public Connection open(String url) throws ConnectionException {

return null;
}

}
39 changes: 39 additions & 0 deletions group23/565832157/src/com/coderising/litestruts/LoginAction.java
Original file line number Diff line number Diff line change
@@ -0,0 +1,39 @@
package com.coderising.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;
}
}
Loading

0 comments on commit 36ff590

Please sign in to comment.