mogrify 下載下傳位址:http://www.imagemagick.org/script/binary-releases.php#windows
cmd執行結果:
mogrify -colorspace rgb -quality 100 "d:\software\eclipse\workspace2\demo_channel_terminal\src\main\resources\mini.jpg"
說明:最後一個參數是要轉化的圖檔全路徑.
測試代碼:
@test
public void test02()
{
process p = null;
string []command = null;
command = new string[]{"cmd"," /c ","mogrify.exe" ,"-colorspace", "rgb", "-quality" ,"100" ,"\"d:\\software\\eclipse\\workspace2\\demo_channel_terminal\\src\\main\\resources\\mini.jpg\""};//cmd /c is needed
bufferedreader reader = null;
try
{
p = runtime.getruntime().exec(command, null);//)
reader = new bufferedreader(new inputstreamreader(p
.geterrorstream(),"gbk"));
stringbuilder sb = new stringbuilder();
string readedline = null;
try
{
while ((readedline = reader.readline()) != null)
{
sb.append(readedline);
sb.append("\r\n");
}
}
catch (ioexception e)
e.printstacktrace();
finally
try
reader.close();
p.destroy();
catch (ioexception e)
e.printstacktrace();
string content = sb.tostring();
system.out.println(content);
}
catch (ioexception e)
e.printstacktrace();
}
執行報錯:
'mogrify.exe' 不是内部或外部指令，也不是可運作的程式
或批處理檔案。
但是我在指令行裡面執行沒有問題呀!!!
為什麼指令行裡面沒問題,java調用就有問題呢?
最後找到了原因:java執行本地指令時要指定指令(exe檔案)所在路徑
string commandfolder="d:\\program files\\imagemagick-6.8.9-q16\\";
p = runtime.getruntime().exec(command, null,new file(commandfolder/*指令的所在目錄*/));//)
reader = new bufferedreader(new inputstreamreader(p
.geterrorstream(),"gbk"));
正确的代碼如下:
// command = new string[]{"cmd"," /c ","dir"};//cmd /c is needed
string commandfolder="d:\\program files\\imagemagick-6.8.9-q16\\";
p = runtime.getruntime().exec(command, null,new file(commandfolder/*指令的所在目錄*/));//)
mogrify網盤下載下傳位址:http://pan.baidu.com/s/1i3vhpoh
安裝完成之後目錄情況:
參考:http://iaiai.iteye.com/blog/1461370
注意:
(1)java 執行dir或ipconfig的指令不需要執行指令所在目錄,但是執行使用者安裝上的exe就必須執行指令所在目錄;
(2)java執行作業系統指令時一定要加上"cmd /c"