java用jna调用dll机构体 中char*问题
运行后报错#
# An unexpected error has been detected by Java Runtime Environment:
#
# EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x0b118f63, pid=3272, tid=5812
#
# Java VM: Java HotSpot(TM) Client VM (11.3-b02 mixed mode windows-x86)
# Problematic frame:
# C [EQ2008_Dll.dll+0x58f63]
#
# An error report file with more information is saved as:
# E:\Workspaces\MyEclipse8.6\DoDll\hs_err_pid3272.log
#
# If you would like to submit a bug report, please visit:
# http://java.sun.com/webapps/bugreport/crash.jsp
# The crash happened outside the Java Virtual Machine in native code.
# See problematic frame for where to report the bug.
#
日志中的信息：
#
# An unexpected error has been detected by Java Runtime Environment:
#
# EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x0b118f63, pid=3272, tid=5812
#
# Java VM: Java HotSpot(TM) Client VM (11.3-b02 mixed mode windows-x86)
# Problematic frame:
# C [EQ2008_Dll.dll+0x58f63]
#
# If you would like to submit a bug report, please visit:
# http://java.sun.com/webapps/bugreport/crash.jsp
# The crash happened outside the Java Virtual Machine in native code.
# See problematic frame for where to report the bug.
#
--------------- T H R E A D ---------------
Current thread (0x00846c00): JavaThread "main" [_thread_in_native, id=5812, stack(0x008e0000,0x00930000)]
siginfo: ExceptionCode=0xc0000005, reading address 0x00000000
Registers:
EAX=0x0092f618, EBX=0x00000000, ECX=0x00000000, EDX=0x7efefeff
ESP=0x0092f510, EBP=0x0092f5f0, ESI=0x00000000, EDI=0x0092f578
EIP=0x0b118f63, EFLAGS=0x00010246
Top of Stack: (sp=0x0092f510)
0x0092f510: 0092f880 0b0c7feb 0092f578 00000000
0x0092f520: 7c9301e0 ffffffff 7c9301db 0b119d5c
0x0092f530: 0b310000 00000000 00000004 0092f880
0x0092f540: 1e101b31 00000000 0092f558 0185000f
0x0092f550: 00000004 00000000 0092f570 00000010
0x0092f560: 00000007 00000000 00000000 000002bc
0x0092f570: 8600d000 22020201 74737953 00006d65
0x0092f580: 0b31bb10 0092f5b4 0b0f3eed 0092f684
Instructions: (pc=0x0b118f63)
0x0b118f53: 00 00 75 ea eb 05 89 17 83 c7 04 ba ff fe fe 7e
0x0b118f63: 8b 01 03 d0 83 f0 ff 33 c2 8b 11 83 c1 04 a9 00
Stack: [0x008e0000,0x00930000], sp=0x0092f510, free space=317k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
C [EQ2008_Dll.dll+0x58f63]
C [EQ2008_Dll.dll+0x1bcc4]
C [EQ2008_Dll.dll+0x1d613]
C [jna6882708038020435887.dll+0xcb77]
C [jna6882708038020435887.dll+0xc7c2]
C [jna6882708038020435887.dll+0x4561]
C [jna6882708038020435887.dll+0x4d2e]
j com.sun.jna.Function.invokeInt(I[Ljava/lang/Object;)I+0
j com.sun.jna.Function.invoke([Ljava/lang/Object;Ljava/lang/Class;Z)Ljava/lang/Object;+315
j com.sun.jna.Function.invoke(Ljava/lang/Class;[Ljava/lang/Object;Ljava/util/Map;)Ljava/lang/Object;+214
j com.sun.jna.Library$Handler.invoke(Ljava/lang/Object;Ljava/lang/reflect/Method;[Ljava/lang/Object;)Ljava/lang/Object;+341
j $Proxy0.User_AddSingleText(ILuser/DoDll$Dll$User_SingleText;I)I+30
j user.DoDll.Dodll(ILjava/lang/String;I)I+312
j user.DoDll.DoAll(ZILjava/lang/String;I)Z+42
j user.DoDll.main([Ljava/lang/String;)V+12
v ~StubRoutines::call_stub
Java frames: (J=compiled Java code, j=interpreted, Vv=VM code)
j com.sun.jna.Function.invokeInt(I[Ljava/lang/Object;)I+0
j com.sun.jna.Function.invoke([Ljava/lang/Object;Ljava/lang/Class;Z)Ljava/lang/Object;+315
j com.sun.jna.Function.invoke(Ljava/lang/Class;[Ljava/lang/Object;Ljava/util/Map;)Ljava/lang/Object;+214
j com.sun.jna.Library$Handler.invoke(Ljava/lang/Object;Ljava/lang/reflect/Method;[Ljava/lang/Object;)Ljava/lang/Object;+341
j $Proxy0.User_AddSingleText(ILuser/DoDll$Dll$User_SingleText;I)I+30
j user.DoDll.Dodll(ILjava/lang/String;I)I+312
j user.DoDll.DoAll(ZILjava/lang/String;I)Z+42
j user.DoDll.main([Ljava/lang/String;)V+12
v ~StubRoutines::call_stub
--------------- P R O C E S S ---------------
Java Threads: ( => current thread )
0x0ab19c00 JavaThread "Low Memory Detector" daemon [_thread_blocked, id=4224, stack(0x0ad60000,0x0adb0000)]
0x0ab0e800 JavaThread "CompilerThread0" daemon [_thread_blocked, id=3088, stack(0x0ad10000,0x0ad60000)]
0x0ab3b400 JavaThread "Attach Listener" daemon [_thread_blocked, id=3560, stack(0x0acc0000,0x0ad10000)]
0x0ab26400 JavaThread "Signal Dispatcher" daemon [_thread_blocked, id=772, stack(0x0ac70000,0x0acc0000)]
0x0aafc800 JavaThread "Finalizer" daemon [_thread_blocked, id=5964, stack(0x0ac20000,0x0ac70000)]
0x0aaf8000 JavaThread "Reference Handler" daemon [_thread_blocked, id=5144, stack(0x0abd0000,0x0ac20000)]
=>0x00846c00 JavaThread "main" [_thread_in_native, id=5812, stack(0x008e0000,0x00930000)]
Other Threads:
0x0aaf4800 VMThread [stack: 0x0ab80000,0x0abd0000] [id=3632]
0x0ab1b800 WatcherThread [stack: 0x0adb0000,0x0ae00000] [id=4568]
VM state:not at safepoint (normal execution)
VM Mutex/Monitor currently owned by a thread: None
Heap
def new generation total 960K, used 231K [0x029e0000, 0x02ae0000, 0x02ec0000)
eden space 896K, 20% used [0x029e0000, 0x02a0d860, 0x02ac0000)
from space 64K, 77% used [0x02ac0000, 0x02acc750, 0x02ad0000)
to space 64K, 0% used [0x02ad0000, 0x02ad0000, 0x02ae0000)
tenured generation total 4096K, used 230K [0x02ec0000, 0x032c0000, 0x069e0000)
the space 4096K, 5% used [0x02ec0000, 0x02ef9ba0, 0x02ef9c00, 0x032c0000)
compacting perm gen total 12288K, used 3494K [0x069e0000, 0x075e0000, 0x0a9e0000)
the space 12288K, 28% used [0x069e0000, 0x06d49880, 0x06d49a00, 0x075e0000)
No shared spaces configured.
Dynamic libraries:
0x00400000 - 0x00424000 D:\program files\Genuitec\Common\binary\com.sun.java.jdk.win32.x86_1.6.0.013\bin\javaw.exe
0x7c920000 - 0x7c9b6000 C:\WINDOWS\system32\ntdll.dll
0x7c800000 - 0x7c91e000 C:\WINDOWS\system32\kernel32.dll
0x77da0000 - 0x77e49000 C:\WINDOWS\system32\ADVAPI32.dll
0x77e50000 - 0x77ee3000 C:\WINDOWS\system32\RPCRT4.dll
0x77fc0000 - 0x77fd1000 C:\WINDOWS\system32\Secur32.dll
0x77d10000 - 0x77da0000 C:\WINDOWS\system32\USER32.dll
0x77ef0000 - 0x77f39000 C:\WINDOWS\system32\GDI32.dll
0x76300000 - 0x7631d000 C:\WINDOWS\system32\IMM32.DLL
0x62c20000 - 0x62c29000 C:\WINDOWS\system32\LPK.DLL
0x73fa0000 - 0x7400b000 C:\WINDOWS\system32\USP10.dll
0x7c340000 - 0x7c396000 D:\program files\Genuitec\Common\binary\com.sun.java.jdk.win32.x86_1.6.0.013\jre\bin\msvcr71.dll
0x6d8b0000 - 0x6db06000 D:\program files\Genuitec\Common\binary\com.sun.java.jdk.win32.x86_1.6.0.013\jre\bin\client\jvm.dll
0x76b10000 - 0x76b3a000 C:\WINDOWS\system32\WINMM.dll
0x6d340000 - 0x6d348000 D:\program files\Genuitec\Common\binary\com.sun.java.jdk.win32.x86_1.6.0.013\jre\bin\hpi.dll
0x76bc0000 - 0x76bcb000 C:\WINDOWS\system32\PSAPI.DLL
0x6d860000 - 0x6d86c000 D:\program files\Genuitec\Common\binary\com.sun.java.jdk.win32.x86_1.6.0.013\jre\bin\verify.dll
0x6d3e0000 - 0x6d3ff000 D:\program files\Genuitec\Common\binary\com.sun.java.jdk.win32.x86_1.6.0.013\jre\bin\java.dll
0x6d8a0000 - 0x6d8af000 D:\program files\Genuitec\Common\binary\com.sun.java.jdk.win32.x86_1.6.0.013\jre\bin\zip.dll
0x68000000 - 0x68036000 C:\WINDOWS\system32\rsaenh.dll
0x77be0000 - 0x77c38000 C:\WINDOWS\system32\msvcrt.dll
0x759d0000 - 0x75a7f000 C:\WINDOWS\system32\USERENV.dll
0x5fdd0000 - 0x5fe25000 C:\WINDOWS\system32\netapi32.dll
0x6d6c0000 - 0x6d6d3000 D:\program files\Genuitec\Common\binary\com.sun.java.jdk.win32.x86_1.6.0.013\jre\bin\net.dll
0x71a20000 - 0x71a37000 C:\WINDOWS\system32\WS2_32.dll
0x71a10000 - 0x71a18000 C:\WINDOWS\system32\WS2HELP.dll
0x719c0000 - 0x719fe000 C:\WINDOWS\System32\mswsock.dll
0x76ef0000 - 0x76f17000 C:\WINDOWS\system32\DNSAPI.dll
0x76d30000 - 0x76d48000 C:\WINDOWS\system32\iphlpapi.dll
0x76f80000 - 0x76f88000 C:\WINDOWS\System32\winrnr.dll
0x76f30000 - 0x76f5c000 C:\WINDOWS\system32\WLDAP32.dll
0x76f90000 - 0x76f96000 C:\WINDOWS\system32\rasadhlp.dll
0x10000000 - 0x10055000 C:\Documents and Settings\qy\Local Settings\Temp\jna6882708038020435887.dll
0x0b0c0000 - 0x0b17c000 E:\Workspaces\MyEclipse8.6\DoDll\EQ2008_Dll.dll
0x77180000 - 0x77283000 C:\WINDOWS\WinSxS\x86_Microsoft.Windows.Common-Controls_6595b64144ccf1df_6.0.2600.6028_x-ww_61e65202\COMCTL32.dll
0x77f40000 - 0x77fb6000 C:\WINDOWS\system32\SHLWAPI.dll
0x76990000 - 0x76ace000 C:\WINDOWS\system32\ole32.dll
0x770f0000 - 0x7717b000 C:\WINDOWS\system32\OLEAUT32.dll
0x61880000 - 0x618ba000 C:\WINDOWS\system32\OLEACC.dll
0x72f70000 - 0x72f96000 C:\WINDOWS\system32\WINSPOOL.DRV
0x76320000 - 0x76367000 C:\WINDOWS\system32\COMDLG32.dll
0x7d590000 - 0x7dd84000 C:\WINDOWS\system32\SHELL32.dll
0x49010000 - 0x49096000 C:\WINDOWS\system32\msftedit.dll
0x74d90000 - 0x74dfd000 C:\WINDOWS\system32\Riched20.dll
VM Arguments:
jvm_args: -Dfile.encoding=GBK
java_command: user.DoDll
Launcher Type: SUN_STANDARD
Environment Variables:
CLASSPATH=.;JAVA_HOME\lib\dt.jar;JAVA_HOME\lib\tools.jar
PATH=D:/program files/Genuitec/Common/binary/com.sun.java.jdk.win32.x86_1.6.0.013/jre/bin/client;D:/program files/Genuitec/Common/binary/com.sun.java.jdk.win32.x86_1.6.0.013/jre/bin;E:\oracle\product\10.2.0\db_1\bin;JAVA_HOME\bin;C:\Program Files\Java\jdk1.6.0\bin
USERNAME=qy
OS=Windows_NT
PROCESSOR_IDENTIFIER=x86 Family 6 Model 23 Stepping 10, GenuineIntel
--------------- S Y S T E M ---------------
OS: Windows XP Build 2600 Service Pack 3
CPU:total 2 (2 cores per cpu, 1 threads per core) family 6 model 7 stepping 10, cmov, cx8, fxsr, mmx, sse, sse2, sse3, ssse3
Memory: 4k page, physical 1958696k(872168k free), swap 3898024k(2693208k free)
vm_info: Java HotSpot(TM) Client VM (11.3-b02) for windows-x86 JRE (1.6.0_13-b03), built on Mar 9 2009 01:15:24 by "java_re" with MS VC++ 7.1
time: Sat Jun 22 11:57:37 2013
elapsed time: 0 seconds jna dll char* --------------------编程问答-------------------- dll中的结构体：
1、§窗体设置
typedef struct
{
int iX; //窗口的起点X
int iY; //窗口的起点Y
int iWidth; //窗体的宽度
int iHeight; //窗体的高度
int iFrameMode; //边框的样式
COLORREF FrameColor; //边框颜色
}User_PartInfo;
2、§字体设置
typedef struct
{
char* strFontName; //字体的名称
int iFontSize; //字体的大小
BOOL bFontBold; //字体是否加粗
BOOL bFontItaic; //字体是否是斜体
BOOL bFontUnderline; //字体是否带下划线
COLORREF colorFont; //字体的颜色
int iAlignStyle; //对齐方式
//0－左对齐
//1－居中
//2－右对齐
int iVAlignerStyle; //上下对齐方式
//0-顶对齐
//1-上下居中
//2-底对齐
int iRowSpace; //行间距
}User_FontSet;
3、§动画方式设置
typedef struct _User_MoveSet
{
int iActionType; //节目变换方式
int iActionSpeed; //节目的播放速度
BOOL bClear; //是否需要清除背景
int iHoldTime; //在屏幕上停留的时间
int iClearSpeed; //清除显示屏的速度
int iClearActionType; //节目清除的变换方式
int iFrameTime; //每帧时间
}User_MoveSet;
4、§单行文本区参数
typedef struct _User_SingleText
{
char *chContent //显示内容
User_PartInfo PartInfo; //分区信息
COLORREF BkColor; //背景颜色
User_FontSet FontInfo; //字体设置
User_MoveSet MoveSet; //动作方式设置
}User_SingleText;
dll中要调用的方法：
int User_AddProgram(int CardNum,BOOL bWaitToEnd,int iPlayTime);
函数功能：添加节目索引
参数说明：CardNum － 控制卡地址，基数为1，即第一块控制卡地址为1
bWaitToEnd － TRUE 等待节目播放完成再播放下个节目
FALSE节目播放时间为iPlayTime
iPlayTime － 节目播放时间,单位为秒
返回值： 节目索引号
int User_AddSingleText(int CardNum,User_SingleText *pSingleText,int iProgramIndex);
函数功能：添加单行文本区
参数说明：CardNum － 控制卡地址，基数为1，即第一块控制卡地址为1
pSingleText － 单行文本参数表指针，参考【参数表】中8
iProgramIndex － 节目索引号
返回值： -1－添加单行文本区失败，非-1－分区编号
java中用jna模拟结构体
package pushData;
import com.sun.jna.Structure;
public class User_FontSet extends Structure{
public String strFontName="text";
public int iFontSize=2;
public boolean bFontBold=true;
public boolean bFontItaic=true;
public boolean bFontUnderline=true;
public long colorFont=1;
public int iAlignStyle=1;
public int iVAlignerStyle=1;
public int iRowSpace=1;
public static class ByReference extends User_FontSet implements Structure.ByReference { }
public static class ByValue extends User_FontSet implements Structure.ByValue{}
}
package pushData;
import com.sun.jna.Structure;
public class User_MoveSet extends Structure{
public int iActionType=1;
public int iActionSpeed=1;
public boolean bClear=false;
public int iHoldTime=1;
public int iClearSpeed=1;
public int iClearActionType=1;
public int iFrameTime=1;
public static class ByReference extends User_MoveSet implements Structure.ByReference { }
public static class ByValue extends User_MoveSet implements Structure.ByValue{}
}
package pushData;
import com.sun.jna.Structure;
public class User_PartInfo extends Structure{
public int iX=50;
public int iY=50;
public int iWidth=30;
public int iHeight=20;
public int iFrameMode=1;
public long FrameColor=1;
public static class ByReference extends User_PartInfo implements Structure.ByReference { }
public static class ByValue extends User_PartInfo implements Structure.ByValue{}
}
package pushData;
import com.sun.jna.Structure;
public class User_SingleText extends Structure{
public String chContent;
public User_PartInfo.ByValue up;
public long BKColor;
public User_FontSet.ByValue ub;
public User_MoveSet.ByValue um;
public static class ByReference extends User_SingleText implements Structure.ByReference { }
public static class ByValue extends User_SingleText implements Structure.ByValue{ }
} --------------------编程问答-------------------- ava中调用dll和调用dll的方法
package pushData;
import com.sun.jna.Native;
import com.sun.jna.win32.StdCallLibrary;
public class DoDll {
public interface Dll extends StdCallLibrary{
Dll INSTANCE = (Dll) Native.loadLibrary("EQ2008_Dll", Dll.class);//加载dll文件
public boolean User_DelAllProgram(int CardNum);//删除一个节目
public int User_AddProgram(int CardNum,boolean bWaitToEnd,int iPlayTime);//添加节目
public int User_AddSingleText(int CardNum,User_SingleText pSingleText,int iProgramIndex);//添加单行文本区
public boolean User_SendToScreen (int iCardNum);//发送节目数据到控制卡
}
//删除一个节目
private boolean User_DelAllProgram(int CardNum)
{
return Dll.INSTANCE.User_DelAllProgram(CardNum);
}
//添加节目
private int User_AddProgram(int CardNum,boolean bWaitToEnd,int iPlayTime)
{
return Dll.INSTANCE.User_AddProgram(CardNum,bWaitToEnd,iPlayTime);
}
//添加单行文本区
private int Dodll(int CardNum,String chContents,int iProgramIndex){
User_SingleText us1=new User_SingleText.ByReference();
us1.chContent=chContents;
us1.up=new User_PartInfo.ByValue();
us1.up.iX=1;
us1.up.iY=2;
us1.up.iWidth=1;
us1.up.iHeight=2;
us1.up.iFrameMode=1;
us1.up.FrameColor=0;
us1.up.write();
us1.BKColor=1;
us1.ub= new User_FontSet.ByValue();
us1.ub.strFontName="text";
us1.ub.iFontSize=1;
us1.ub.bFontBold=false;
us1.ub.bFontItaic=false;
us1.ub.bFontUnderline=false;
us1.ub.colorFont=1;
us1.ub.iAlignStyle=1;
us1.ub.iVAlignerStyle=1;
us1.ub.iRowSpace=2;
us1.ub.write();
us1.um=new User_MoveSet.ByValue();
us1.um.iActionType=1;
us1.um.iActionSpeed=2;
us1.um.bClear=false;
us1.um.iHoldTime=2;
us1.um.iClearSpeed=1;
us1.um.iClearActionType=2;
us1.um.iFrameTime=2;
us1.um.write();
us1.write();
return Dll.INSTANCE.User_AddSingleText(CardNum,us1,iProgramIndex);
}
//发送节目数据到控制卡
private boolean User_SendToScreen (int CardNum)
{
return Dll.INSTANCE.User_SendToScreen(CardNum);
}
private int[] CardNums=new int[]{0,1,2,3,4,5,6,7,8,9};
public boolean DoAll(boolean bWaitToEnd,int iPlayTime,String chContents, int iProgramIndex)
{
boolean rd=false;
for(int i=0;i<CardNums.length;i++)
{
int rn=User_AddProgram(CardNums[i],bWaitToEnd,iPlayTime);
int rs=Dodll(CardNums[i],chContents,rn);
if(rs!=-1)
{
rd=true;
}
}
return rd;
}
}
--------------------编程问答-------------------- 尽可能详细，希望大牛们给些建议
自己判断是java模拟结构体中User_SingleText的 char* chContent 时报错，因为我在Java文件中将这个属性注销，运行就没问题了，自己试了试网上查到的方法，指针和byte【】都不行，顺便提一下c的编码是ascii --------------------编程问答--------------------
--------------------编程问答--------------------
各位大牛，很急希望给些建议啊
--------------------编程问答--------------------
除
--------------------编程问答--------------------
你好,问下你的功能实现了吗?--------------------编程问答-------------------- 没有，急死了都 --------------------编程问答-------------------- 不要用这种类型的，要改成通用型的。 unicode这种编码好像。 --------------------编程问答--------------------
我用的jnative调用EQ2008_Dll.dll,也把那个ini文件和dll放在一起了,为什么连基本的关屏,开屏都调不通啊,不报错,就是返回false,lz留个联系方式白,沟通下 --------------------编程问答-------------------- 哥们,不用写了,我打电话问的人家的客服,他们的控制卡不能用java进行二次开发. --------------------编程问答--------------------
我用的是jna，开平和关平我倒是没用到。开屏关屏调试应该是先把大屏配置好了，还有你那个ini文件的控制卡地址也配置好，这样才能测。你不报错就应该是调用成功了 --------------------编程问答--------------------
你那边的是上海的吗，我这边到不是对控制卡进行二次开发，我只是用到了他们提供的动态库 --------------------编程问答-------------------- 这个我以前做过声音板卡，用了java的桥接包jnative.jar，每个java参数都会对应一个c对应的参数名哇，你这好像么看到啊，桥接方法(java调c的方法)你没贴出来吧 --------------------编程问答--------------------
贴了，jna调用不用每次声明参数分配内存什么的，但是参数也要和c对应，我现在别的方法都是调通了就是添加USER_SingleText的时候总是返回的是-1，也就是没添加成功。我看了这个添加不用和硬件相连。自己判断还是参数对应的问题，一个是char*一个是机构体中的指针 --------------------编程问答-------------------- public static final void ssmGetLastErrMsg(String errMsg)
throws NativeException,IllegalAccessException
{
JNative n = null;
try
{
n = new JNative("SHP_A3.dll","SsmGetLastErrMsg");
//n.setRetVal(Type.INT);
//int i = 0;
n.setParameter(0,Type.STRING,errMsg);
n.invoke();
//return n.getRetVal();
}
catch (NativeException e)
{
e.printStackTrace();
}
catch (IllegalAccessException e)
{
e.printStackTrace();
}
//return Integer.parseInt(n.getRetVal());
}
这个是我以前做的你看看吧 --------------------编程问答-------------------- 我也是调用他们的动态库,那就是相当于二次开发啊,不用他们提供的一卡通程序,基本的东西都调不通的 --------------------编程问答--------------------
ini文件我配置好了,在vc中能调通,你可以试试用jna调用开关屏幕能不能通,然后就知道了.
开关屏就一个num的参数,你先 试试吧,我试后不通然后给客服打的电话,你调用他们的dll也是开发你的项目,相当于二次开发吧... --------------------编程问答-------------------- 哎最后java还是没解决，用了.net --------------------编程问答-------------------- 哥们你在调dll里面函数的时候unsigned char *转换成的java里什么类型，byte行不通。
补充：Java , Java SE
