java - 无法加载库 'gsdll32'

Question

我正在运行以下代码，使用 Ghost4j 从 pdf 创建 bmp 图像

我有一个由 GhostScript 生成器执行的命令，用于从 pdf 生成页面的 Bmp 图像。代码是:

package ghost;

import net.sf.ghost4j.Ghostscript;
import net.sf.ghost4j.GhostscriptException;

public class GhostDemo {
public static void main(String[] a){
    Ghostscript gs = Ghostscript.getInstance(); //create gs instance
    String[] gsArgs = new String[10];/*command string array*/
    gsArgs[0] = "-dUseCropBox";/*use crop box*/
    gsArgs[1] = "-dNOPAUSE";
    gsArgs[2] = "-dBATCH";
    gsArgs[3] = "-dSAFER";
    gsArgs[3] = "-r300";
    gsArgs[4] = "-sDEVICE=bmp16m";
    gsArgs[6] = "-dTextAlphaBits=4";
    gsArgs[5] = "-sOutputFile=C:/PagesWorkspace/1/masterData/1.bmp";/*bmp file location with name*/
    gsArgs[6] = "C:/MasterWorkspace/pipeline.pdf";/*pdf location with name*/

    try {

        gs.initialize(gsArgs);  /*initialise ghost interpreter*/
        gs.exit();

    } catch (GhostscriptException e) {
       e.printStackTrace();
    }
}
}

我遇到了异常

Exception in thread "main" java.lang.UnsatisfiedLinkError: Unable to load library 'gsdll32': The specified module could not be found.

    at com.sun.jna.NativeLibrary.loadLibrary(NativeLibrary.java:145)
    at com.sun.jna.NativeLibrary.getInstance(NativeLibrary.java:188)
    at com.sun.jna.Library$Handler.<init>(Library.java:123)
    at com.sun.jna.Native.loadLibrary(Native.java:255)
    at com.sun.jna.Native.loadLibrary(Native.java:241)
    at net.sf.ghost4j.GhostscriptLibraryLoader.loadLibrary(GhostscriptLibraryLoader.java:36)
    at net.sf.ghost4j.GhostscriptLibrary.<clinit>(GhostscriptLibrary.java:32)
    at net.sf.ghost4j.Ghostscript.initialize(Ghostscript.java:292)
    at ghost.GhostDemo.main(GhostDemo.java:22)

谁能告诉我为什么会出现此异常？

Answer 1

你有安装 Ghostscript 吗？

• 如果是，是哪个版本？
• 如果是，在哪个位置？
• 它是否包含文件 gsdll32.dll？

如果没有，download the Ghostscript installer for Win32并运行它。安装后，目录%your_install_dir%\gs\gs9.05\bin\

中应该有一个文件 gsdll32.dll