本文實例講述了java實現(xiàn)的簡單圖片上傳功能。分享給大家供大家參考，具體如下：
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import java.io.*;import java.net.*;/**發(fā)送端*/class picsend{ public static void main(string[] args) throws exception { if(args.length!=1) { system.out.println("請選擇一張.jpg圖片"); return; } file file = new file(args[0]); if (!(file.exists() && file.isfile())) { system.out.println("圖片有問題(不是文件或不存在)"); return; } if(!file.getname().endswith(".jpg")) { system.out.println("圖片格式不對，請重新選擇圖片"); return; } if(file.length()>1024*1024*10) { system.out.println("圖片過大，無法上傳"); return; } socket s = new socket("192.168.33.1",10006);//建立服務(wù) fileinputstream fis = new fileinputstream("d:\\美女.jpg");//讀取圖片 outputstream out = s.getoutputstream();//讀到的寫入 byte [] b = new byte[1024]; int len = 0; while((len = fis.read(b))!= -1) { out.write(b,0,len); } s.shutdownoutput();//標(biāo)記結(jié)束 inputstream in = s.getinputstream();//讀服務(wù)端返回數(shù)據(jù) byte [] bin = new byte[1024]; int num = in.read(bin); system.out.println(new string(bin,0,num)); fis.close(); s.close(); }}class picthread implements runnable{ private socket s; picthread(socket s) { this.s = s; } public void run() { int count = 1; string ip = s.getinetaddress().gethostaddress();//得到ip try { system.out.println(ip+".............connect"); inputstream in = s.getinputstream();//讀到流中數(shù)據(jù) file file = new file(ip+"("+(count)+")"+".jpg"); while(file.exists())//判斷文件是否存在 file = new file(ip+"("+(count++)+")"+".jpg"); fileoutputstream fos = new fileoutputstream(file);//寫入 byte [] b = new byte[1024]; int len = 0; while((len = in.read(b))!=-1) { fos.write(b,0,len); } outputstream out = s.getoutputstream();//寫入服務(wù)端傳過來數(shù)據(jù) out.write("上傳成功！".getbytes()); fos.close(); s.close(); } catch (exception e) { throw new runtimeexception("上傳失敗"); } }}/**服務(wù)端*/class picrece{ public static void main(string[] args) throws exception { serversocket ss = new serversocket(10006); while(true) { socket s = ss.accept();//接收 new thread(new picthread(s)).start(); } }} |
運行效果圖如下：
希望本文所述對大家java程序設(shè)計有所幫助。
原文鏈接：http://blog.csdn.net/chaoyu168/article/details/49902909
