import java.io.DataInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.FileInputStream;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import sun.net.*;
import sun.net.ftp.FtpClient;
public class TestUpload {
public FtpClient ftpClient;
/**
* connectServer 连接ftp服务器
*
* @throws java.io.IOException
* @param path 文件夹，空代表根目录
* @param password 密码
* @param user 登陆用户
* @param server 服务器地址
*/
public void connectServer(String server, String user, String password,
String path) throws IOException {
// server：FTP服务器的IP地址；user:登录FTP服务器的用户名
// password：登录FTP服务器的用户名的口令；path：FTP服务器上的路径
ftpClient = new FtpClient();
ftpClient.openServer(server);
ftpClient.login(user, password);
// path是ftp服务下主目录的子目录
if (path.length() != 0)
ftpClient.cd(path);
// 用2进制上传、下载
ftpClient.binary();
}
/**
* upload 上传文件
*
* @throws java.lang.Exception
* @return -1 文件不存在 -2 文件内容为空 >0 成功上传，返回文件的大小
* @param newname 上传后的新文件名
* @param filename 上传的文件
*/
public long upload(String filename, String newname) throws Exception {
long result = 0;
TelnetOutputStream os = null;
FileInputStream is = null;
try {
java.io.File file_in = new java.io.File(filename);
if (!file_in.exists())
return -1;
if (file_in.length() == 0)
return -2;
os = ftpClient.put(newname);
result = file_in.length();
is = new FileInputStream(file_in);
byte[] bytes = new byte[1024];
int c;
while ((c = is.read(bytes)) != -1) {
os.write(bytes, 0, c);
}
} finally {
if (is != null) {
is.close();
}
if (os != null) {
os.close();
}
}
return result;
}
/**
* upload
*
* @throws java.lang.Exception
* @return
* @param filename
*/
public long upload(String filename) throws Exception {
String newname = "";
if (filename.indexOf("/") > -1) {
newname = filename.substring(filename.lastIndexOf("/") + 1);
} else {
newname = filename;
}
return upload(filename, newname);
}
/**
* download 从ftp下载文件到本地
*
* @throws java.lang.Exception
* @return
* @param newfilename 本地生成的文件名
* @param filename 服务器上的文件名
*/
public long download(String filename, String newfilename) throws Exception {
long result = 0;
TelnetInputStream is = null;
FileOutputStream os = null;
try {
is = ftpClient.get(filename);
java.io.File outfile = new java.io.File(newfilename);
os = new FileOutputStream(outfile);
byte[] bytes = new byte[1024];
int c;
while ((c = is.read(bytes)) != -1) {
os.write(bytes, 0, c);
result = result + c;
}
} catch (IOException e) {
e.printStackTrace();
} finally {
if (is != null) {
is.close();
}
if (os != null) {
os.close();
}
}
return result;
}
/**
* 取得某个目录下的所有文件列表
*
*/
public List getFileList(String path) {
List list = new ArrayList();
try {
DataInputStream dis = new DataInputStream(ftpClient.nameList(path));
String filename = "";
while ((filename = dis.readLine()) != null) {
list.add(filename);
}
} catch (Exception e) {
e.printStackTrace();
}
return list;
}
/**
* closeServer 断开与ftp服务器的链接
*
* @throws java.io.IOException
*/
public void closeServer() throws IOException {
try {
if (ftpClient != null) {
ftpClient.closeServer();
}
} catch (IOException e) {
e.printStackTrace();
}
}
public static void main(String[] args) throws Exception {
TestUpload ftp = new TestUpload();
try {
System.out.println("start connection >>>>>>>>>>.");
// 连接ftp服务器
ftp.connectServer("192.168.1.105", "li", "li", "download");
/** 上传文件到 info2 文件夹下 */
System.out.println("filesize:"
+ ftp.upload("c:/11.txt") + "字节");
/** 取得info2文件夹下的所有文件列表,并下载到 E盘下 */
List list = ftp.getFileList(".");
// for (int i = 0; i < list.size(); i++) {
// String filename = (String) list.get(i);
// System.out.println(filename);
// ftp.download(filename, "d:/" + filename);
// }
ftp.download("11.txt", "d:/" + "11.txt");
System.out.println("end connection >>>>>>>>>>.");
} catch (Exception e) {
// /
} finally {
ftp.closeServer();
}
}
}
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title> New Document </title>
<script>
//xxbh:学校编号，bjbh:班级编号,xx：姓名
var arrJson=[
{'xxbh':'1001','bjbh':'0801','xx':'李四'},{'xxbh':'1001','bjbh':'0802','xx':'张三'},
{'xxbh':'1003','bjbh':'0803','xx':'王五'},{'xxbh':'1003','bjbh':'0804','xx':'晶晶'},
{'xxbh':'1005','bjbh':'0701','xx':'亮亮'},{'xxbh':'1002','bjbh':'0701','xx':'明敏'},
{'xxbh':'1005','bjbh':'0701','xx':'张灿'},{'xxbh':'1002','bjbh':'0801','xx':'小白'},
{'xxbh':'1005','bjbh':'0802','xx':'小胖'},{'xxbh':'1002','bjbh':'0901','xx':'小丽'},
{'xxbh':'1003','bjbh':'0901','xx':'阿宝'},{'xxbh':'1004','bjbh':'0901','xx':'王泰'},
{'xxbh':'1001','bjbh':'0901','xx':'阿毛'},{'xxbh':'1006','bjbh':'0901','xx':'李铭'},
{'xxbh':'1005','bjbh':'0901','xx':'阿城'},{'xxbh':'1004','bjbh':'0901','xx':'张晓'},
{'xxbh':'1006','bjbh':'0901','xx':'小小'},{'xxbh':'1004','bjbh':'0901','xx':'白昼'},
{'xxbh':'1002','bjbh':'0901','xx':'乐乐'},{'xxbh':'1001','bjbh':'0901','xx':'黎明'}
];
function creatMapByXxbh(arrJson){
var xxbhMap={};
var len = arrJson.length;
for(var i=0;i<len;i++){
if(xxbhMap[arrJson[i].xxbh] == undefined){
var list = [];
list.push(arrJson[i]);
xxbhMap[arrJson[i].xxbh] = list;
}else{
xxbhMap[arrJson[i].xxbh].push(arrJson[i]);
}
}
var str="<table border='1'><tr><td width='200'>学校编号</td><td width='200'>班级</td><td width='200'>姓名</td></tr>";
for(var xxbh in xxbhMap){
var stu = xxbhMap[xxbh];
alert(stu.length);
str+="<tr><td rowspan='"+stu.length+"'>"+xxbh+"</td>";
for(var i = 0;i < stu.length;i++){
//document.write(xxbh + " "+stu[i].bjbh+" "+stu[i].xx +"<br />")
//document.write("<table><tr><td>学校编号</td><td>班级</td><td>姓名</td></tr></table> ")
if(i==0){
str+="<td>"+stu[i].bjbh+"</td><td>"+stu[i].xx+"</td></tr>";
}else{
str+="<tr><td>"+stu[i].bjbh+"</td><td>"+stu[i].xx+"</td></tr>";
}
}
str+="<tr ><td colspan='3'>"+xxbh+"共有"+stu.length+"个班级</td></tr>"
}
str+="</table> ";
document.write(str)
}
</script>
</head >
<body>
<button onclick='creatMapByXxbh(arrJson)'>测试</button>
</body>
</html>
<img src="http://dl.iteye.com/upload/attachment/0063/6806/345b34d1-2dcb-3336-9ccd-c1575e9a26ed.jpg" alt="">
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