JNative调用dll出错

[zhzhl0]

java代码：
public class test {
public static void main(String[] args) throws NativeException, IllegalAccessException {
JNative jn = null;
jn = new JNative("ClientKey.dll", "DecryptPass");
jn.setRetVal(Type.STRING);
jn.setParameter(0, 1);
jn.setParameter(1, "bxxsha ");
jn.setParameter(2, "aa ");
jn.invoke();
String msg = jn.getRetVal();
System.out.println("pass:" + msg);
}
}

出错信息：
#
# A fatal error has been detected by the Java Runtime Environment:
#
# EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x02f014d3, pid=2360, tid=3200
#
# JRE version: 6.0_21-b07
# Java VM: Java HotSpot(TM) Client VM (17.0-b17 mixed mode, sharing windows-x86 )
# Problematic frame:
# C [ClientKey.dll+0x14d3]
#
# 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 (0x00316800): JavaThread "main" [_thread_in_native, id=3200, stack(0x008f0000,0x00940000)]

siginfo: ExceptionCode=0xc0000005, reading address 0x02bff000

Registers:
EAX=0x02bcdce8, EBX=0x00031319, ECX=0x00031319, EDX=0x00006803
ESP=0x0092f9e4, EBP=0x0092fa60, ESI=0xbae1506d, EDI=0x00000048
EIP=0x02f014d3, EFLAGS=0x00010202

Top of Stack: (sp=0x0092f9e4)
0x0092f9e4: 0092fa70 02f016a0 0092fa60 00000000
0x0092f9f4: 00000000 00000000 00000000 00000000
0x0092fa04: 00000000 00000000 02f01a60 02f01940
0x0092fa14: 02f01700 02f016b8 02f01790 02f01af0
0x0092fa24: 02f01868 02f018f8 02f01988 02f017d8
0x0092fa34: 02f01748 02f01a18 02f018b0 02f01aa8
0x0092fa44: 02f019d0 02f01820 010aee46 00006803
0x0092fa54: 02bcdcc8 02bcb268 00ffffff 0092fa7c

Instructions: (pc=0x02f014d3)
0x02f014c3: c0 7e 77 89 45 ec bb 01 00 00 00 8b cb 8b 45 0c
0x02f014d3: 0f b6 44 18 ff d3 e0 03 c7 48 b9 ff 00 00 00 99


Stack: [0x008f0000,0x00940000], sp=0x0092f9e4, free space=fe0092f518k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
C [ClientKey.dll+0x14d3]
C [ClientKey.dll+0x1bc2]

Java frames: (J=compiled Java code, j=interpreted, Vv=VM code)
j org.xvolks.jnative.JNative.nInvoke(I)V+0
j org.xvolks.jnative.JNative.invoke()V+55
j hn.test.main([Ljava/lang/String;)V+42
v ~StubRoutines::call_stub

--------------- P R O C E S S ---------------

Java Threads: ( => current thread )
0x02bb9400 JavaThread "Low Memory Detector" daemon [_thread_blocked, id=1656, stack(0x02e30000,0x02e80000)]
0x02bb6800 JavaThread "CompilerThread0" daemon [_thread_blocked, id=2856, stack(0x02de0000,0x02e30000)]
0x02bb1c00 JavaThread "Attach Listener" daemon [_thread_blocked, id=2756, stack(0x02d90000,0x02de0000)]
0x02bcf400 JavaThread "Signal Dispatcher" daemon [_thread_blocked, id=1784, stack(0x02d40000,0x02d90000)]
0x02b6c800 JavaThread "Finalizer" daemon [_thread_blocked, id=3772, stack(0x02cf0000,0x02d40000)]
0x02b6b400 JavaThread "Reference Handler" daemon [_thread_blocked, id=340, stack(0x02ca0000,0x02cf0000)]
=>0x00316800 JavaThread "main" [_thread_in_native, id=3200, stack(0x008f0000,0x00940000)]

Other Threads:
0x02b69c00 VMThread [stack: 0x02c50000,0x02ca0000] [id=3560]
0x02bc7800 WatcherThread [stack: 0x02e80000,0x02ed0000] [id=2844]

VM state:not at safepoint (normal execution)

VM Mutex/Monitor currently owned by a thread: None

Heap
def new generation total 4928K, used 434K [0x23770000, 0x23cc0000, 0x28cc0000)
eden space 4416K, 9% used [0x23770000, 0x237dc9c8, 0x23bc0000)
from space 512K, 0% used [0x23bc0000, 0x23bc0000, 0x23c40000)
to space 512K, 0% used [0x23c40000, 0x23c40000, 0x23cc0000)
tenured generation total 10944K, used 0K [0x28cc0000, 0x29770000, 0x33770000)
the space 10944K, 0% used [0x28cc0000, 0x28cc0000, 0x28cc0200, 0x29770000)
compacting perm gen total 12288K, used 441K [0x33770000, 0x34370000, 0x37770000)
the space 12288K, 3% used [0x33770000, 0x337de770, 0x337de800, 0x34370000)
ro space 10240K, 54% used [0x37770000, 0x37cec0f0, 0x37cec200, 0x38170000)
rw space 12288K, 55% used [0x38170000, 0x3880fb80, 0x3880fc00, 0x38d70000)

Dynamic libraries:
0x00400000 - 0x00424000 D:\Java\jdk\bin\java.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
0x7c340000 - 0x7c396000 D:\Java\jdk\jre\bin\msvcr71.dll
0x6d8b0000 - 0x6db57000 D:\Java\jdk\jre\bin\client\jvm.dll
0x77d10000 - 0x77da0000 C:\WINDOWS\system32\USER32.dll
0x77ef0000 - 0x77f39000 C:\WINDOWS\system32\GDI32.dll
0x76b10000 - 0x76b3a000 C:\WINDOWS\system32\WINMM.dll
0x76300000 - 0x7631d000 C:\WINDOWS\system32\IMM32.DLL
0x62c20000 - 0x62c29000 C:\WINDOWS\system32\LPK.DLL
0x73fa0000 - 0x7400b000 C:\WINDOWS\system32\USP10.dll
0x6d860000 - 0x6d86c000 D:\Java\jdk\jre\bin\verify.dll
0x6d3e0000 - 0x6d3ff000 D:\Java\jdk\jre\bin\java.dll
0x6d340000 - 0x6d348000 D:\Java\jdk\jre\bin\hpi.dll
0x76bc0000 - 0x76bcb000 C:\WINDOWS\system32\PSAPI.DLL
0x6d8a0000 - 0x6d8af000 D:\Java\jdk\jre\bin\zip.dll
0x66c40000 - 0x66c61000 D:\Java\Project\DLLTest\JNativeCpp.dll
0x77be0000 - 0x77c38000 C:\WINDOWS\system32\msvcrt.dll
0x76990000 - 0x76ace000 C:\WINDOWS\system32\OLE32.dll
0x770f0000 - 0x7717b000 C:\WINDOWS\system32\OLEAUT32.DLL
0x02f00000 - 0x02f0c000 D:\Java\Project\DLLTest\ClientKey.dll
0x40000000 - 0x401f2000 C:\WINDOWS\system32\vcl50.bpl
0x71a90000 - 0x71aa2000 C:\WINDOWS\system32\mpr.dll
0x77bd0000 - 0x77bd8000 C:\WINDOWS\system32\version.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
0x76320000 - 0x76367000 C:\WINDOWS\system32\comdlg32.dll
0x7d590000 - 0x7dd84000 C:\WINDOWS\system32\SHELL32.dll
0x71a40000 - 0x71a4b000 C:\WINDOWS\system32\wsock32.dll
0x71a20000 - 0x71a37000 C:\WINDOWS\system32\WS2_32.dll
0x71a10000 - 0x71a18000 C:\WINDOWS\system32\WS2HELP.dll
0x74c90000 - 0x74cb0000 C:\WINDOWS\system32\oledlg.dll
0x72f70000 - 0x72f96000 C:\WINDOWS\system32\winspool.drv

VM Arguments:
jvm_args: -Dfile.encoding=UTF-8
java_command: hn.test
Launcher Type: SUN_STANDARD

Environment Variables:
JAVA_HOME=d:\java\jdk
CLASSPATH=.;d:\java\jdk\lib\dt.jar;d:\java\jdk\lib\htmlconverter.jar;d:\java\jdk\lib\jconsole.jar;d:\java\jdk\lib\tools.jar;
PATH=C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;d:\java\jdk\bin;D:\Program Files\Symantec\pcAnywhere\;C:\WINDOWS\system32\WindowsPowerShell\v1.0;C:\Program Files\Microsoft SQL Server\80\Tools\Binn\;C:\Program Files\Microsoft SQL Server\90\Tools\binn\;C:\Program Files\Microsoft SQL Server\90\DTS\Binn\;C:\Program Files\Microsoft SQL Server\90\Tools\Binn\VSShell\Common7\IDE\;d:\Program Files\IsoBuster
USERNAME=zhappy
OS=Windows_NT
PROCESSOR_IDENTIFIER=x86 Family 15 Model 107 Stepping 2, AuthenticAMD



--------------- 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 15 model 107 stepping 2, cmov, cx8, fxsr, mmx, sse, sse2, sse3, mmxext, 3dnow, 3dnowext

Memory: 4k page, physical 1965228k(981868k free), swap 3904092k(2825940k free)

vm_info: Java HotSpot(TM) Client VM (17.0-b17) for windows-x86 JRE (1.6.0_21-b07), built on Jul 17 2010 01:10:15 by "java_re" with MS VC++ 7.1 (VS2003)

time: Fri May 06 09:32:09 2011
elapsed time: 0 seconds

[菜继续]

第一个致命的错误被检测的爪哇运行时环境:

#

# EXCEPTION_ACCESS_VIOLATION(0xc0000005)pc = 0x7c92100b、pid = 596,本署= 2080年

#

6.0_21-b07 #嘉园版:

#爪哇VM:爪哇热点(TM)客户17.0-b17虚拟内存(混合模式、共享windows-x86)

#有问题的骨架材料:

[ntdll.dll + 0x100b # C)

#

#如果你想提交一份错误报告,请访问:

# http://java.sun.com/webapps/bugreport/crash.jsp

#事故发生在爪哇虚拟机在本地代码。

#看到有问题的框架,怎样报告迷上它。

[zhzhl0]

来点实质性的咯

[raINbowForks]

楼主，你把dll的那几个参数贴出来，不知道你那几个参数这也没法解决啊。应该是你set变量的时候报的错。

[zhzhl0]

delphi调用的代码：

function DecryptPass(vrowid: integer; passwd, keystr: string): string;
var __p: function(vrowid: integer; passwd, keystr: string): string; stdcall;
__Error: string;
__Handle: Integer;
begin
__p := GetDLLModule(__Handle, 'ClientKey.DLL', 'DecryptPass', __Error);
if Assigned(__p) then begin
Result := __p(vrowid, passwd, keystr);
end else raise Exception.Create(__Error);
end;

[zhzhl0]

function GetDLLModule(var DLLHandle: Integer; DLLName, ModuleName: string; var ErrorMessage: string): Pointer;
begin
Result := nil;
// 没有扩展名的以.DLL为扩展名
if Pos('.', DLLName) = 0 then DLLName := DLLName + '.DLL';
DLLHandle := GetModuleHandle(PChar(DLLName));
if DLLHandle = 0 then //0表示没有调入
DLLHandle := LoadLibrary(PChar(DLLName));
if DLLHandle <> 0 then begin
Result := GetProcAddress(DLLHandle, PCHar(ModuleName));
if not Assigned(Result) then ErrorMessage := Format('在文件%s中并不存在%s模块', [DLLName, ModuleName]);
end else ErrorMessage := '在调入[' + DLLName + ']文件时出错！';
end;


function DecryptPass(vrowid: integer; passwd, keystr: string): string;
var __p: function(vrowid: integer; passwd, keystr: string): string; stdcall;
__Error: string;
__Handle: Integer;
begin
__p := GetDLLModule(__Handle, 'ClientKey.DLL', 'DecryptPass', __Error);
if Assigned(__p) then begin
Result := __p(vrowid, passwd, keystr);
end else raise Exception.Create(__Error);
end;
end.