Some Object
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Регистрация: 19.7.2007
Репутация: 4
Всего: 4
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Мультиплатформенную автозагрузку, ты сделать не сможешь. не везде же есть реестр в таком виде как у МС. во вторых для обращения к реестру нужно использовать нэйтивные методы, что уже говорит о не независимости программы от ОС. Добавлено @ 10:58Вот тебе пример обращения к реестру. в коде изменишь на нужный раздел и все. Это для длл ки | Код |
#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, jobject 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"),
"Set value 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, (jbyte*) cvalue, 0);
}
}
/* helper function to start enumeration of names */
static int startNameEnumeration(JNIEnv* env, jobject this_obj, jclass this_class)
{
jfieldID id_index;
jfieldID id_count;
jfieldID id_root;
jfieldID id_path;
jfieldID id_hkey;
jfieldID id_maxsize;
HKEY root;
jstring path;
const char* cpath;
HKEY hkey;
DWORD maxsize = 0;
DWORD count = 0;
/* get the field IDs */
id_root = (*env)->GetFieldID(env, this_class, "root", "I");
id_path = (*env)->GetFieldID(env, this_class, "path", "Ljava/lang/String;");
id_hkey = (*env)->GetFieldID(env, this_class, "hkey", "I");
id_maxsize = (*env)->GetFieldID(env, this_class, "maxsize", "I");
id_index = (*env)->GetFieldID(env, this_class, "index", "I");
id_count = (*env)->GetFieldID(env, this_class, "count", "I");
/* get the field values */
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 -1;
}
(*env)->ReleaseStringUTFChars(env, path, cpath);
/* query count and max length of names */
if (RegQueryInfoKey(hkey, NULL, NULL, NULL, NULL, NULL, NULL, &count, &maxsize,
NULL, NULL, NULL) != ERROR_SUCCESS)
{
(*env)->ThrowNew(env, (*env)->FindClass(env, "Win32RegKeyException"),
"Query info key failed");
RegCloseKey(hkey);
return -1;
}
/* set the field values */
(*env)->SetIntField(env, this_obj, id_hkey, (DWORD) hkey);
(*env)->SetIntField(env, this_obj, id_maxsize, maxsize + 1);
(*env)->SetIntField(env, this_obj, id_index, 0);
(*env)->SetIntField(env, this_obj, id_count, count);
return count;
}
JNIEXPORT jboolean JNICALL Java_Win32RegKeyNameEnumeration_hasMoreElements(JNIEnv* env,
jobject this_obj)
{ jclass this_class;
jfieldID id_index;
jfieldID id_count;
int index;
int count;
/* get the class */
this_class = (*env)->GetObjectClass(env, this_obj);
/* get the field IDs */
id_index = (*env)->GetFieldID(env, this_class, "index", "I");
id_count = (*env)->GetFieldID(env, this_class, "count", "I");
index = (*env)->GetIntField(env, this_obj, id_index);
if (index == -1) /* first time */
{
count = startNameEnumeration(env, this_obj, this_class);
index = 0;
}
else
count = (*env)->GetIntField(env, this_obj, id_count);
return index < count;
}
JNIEXPORT jobject JNICALL Java_Win32RegKeyNameEnumeration_nextElement(JNIEnv* env,
jobject this_obj)
{
jclass this_class;
jfieldID id_index;
jfieldID id_hkey;
jfieldID id_count;
jfieldID id_maxsize;
HKEY hkey;
int index;
int count;
DWORD maxsize;
char* cret;
jstring ret;
/* get the class */
this_class = (*env)->GetObjectClass(env, this_obj);
/* get the field IDs */
id_index = (*env)->GetFieldID(env, this_class, "index", "I");
id_count = (*env)->GetFieldID(env, this_class, "count", "I");
id_hkey = (*env)->GetFieldID(env, this_class, "hkey", "I");
id_maxsize = (*env)->GetFieldID(env, this_class, "maxsize", "I");
index = (*env)->GetIntField(env, this_obj, id_index);
if (index == -1) /* first time */
{
count = startNameEnumeration(env, this_obj, this_class);
index = 0;
}
else
count = (*env)->GetIntField(env, this_obj, id_count);
if (index >= count) /* already at end */
{
(*env)->ThrowNew(env, (*env)->FindClass(env, "java/util/NoSuchElementException"),
"past end of enumeration");
return NULL;
}
maxsize = (*env)->GetIntField(env, this_obj, id_maxsize);
hkey = (HKEY)(*env)->GetIntField(env, this_obj, id_hkey);
cret = (char*)malloc(maxsize);
/* find the next name */
if (RegEnumValue(hkey, index, cret, &maxsize, NULL, NULL, NULL, NULL) != ERROR_SUCCESS)
{
(*env)->ThrowNew(env, (*env)->FindClass(env, "Win32RegKeyException"),
"Enum value failed");
free(cret);
RegCloseKey(hkey);
(*env)->SetIntField(env, this_obj, id_index, count);
return NULL;
}
ret = (*env)->NewStringUTF(env, cret);
free(cret);
/* increment index */
index++;
(*env)->SetIntField(env, this_obj, id_index, index);
if (index == count) /* at end */
{
RegCloseKey(hkey);
}
return ret;
}
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Это класс для работы с реестром | Код |
import java.util.*;
/**
A Win32RegKey object can be used to get and set values of
a registry key in the Windows registry.
*/
public class Win32RegKey
{
/**
Construct a registry key object.
@param theRoot one of HKEY_CLASSES_ROOT, HKEY_CURRENT_USER,
HKEY_LOCAL_MACHINE, HKEY_USERS, HKEY_CURRENT_CONFIG,
HKEY_DYN_DATA
@param thePath the registry key path
*/
public Win32RegKey(int theRoot, String thePath)
{
root = theRoot;
path = thePath;
}
/**
Enumerates all names of registry entries under the path
that this object describes.
@return an enumeration listing all entry names
*/
public Enumeration<String> names()
{
return new Win32RegKeyNameEnumeration(root, path);
}
/**
Gets the value of a registry entry.
@param name the entry name
@return the associated value
*/
public native Object getValue(String name);
/**
Sets the value of a registry entry.
@param name the entry name
@param value the new value
*/
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<String>
{
Win32RegKeyNameEnumeration(int theRoot, String thePath)
{
root = theRoot;
path = thePath;
}
public native String 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);
}
}
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А это пример юзания | Код |
import java.util.*;
public class Win32RegKeyTest
{
public static void main(String[] args)
{
Win32RegKey key = new Win32RegKey(
Win32RegKey.HKEY_LOCAL_MACHINE, "SOFTWARE\\JavaSoft\\Java Development Kit\\1.6");
key.setValue("default user", "user");
key.setValue("number", new Integer(13));
key.setValue("small primes", new byte[] { 2, 3, 5, 7, 11 });
Enumeration<String> e = key.names();
while (e.hasMoreElements())
{
String name = e.nextElement();
System.out.print(name + "=");
Object value = key.getValue(name);
if (value instanceof byte[])
for (byte b : (byte[]) value) System.out.print((b & 0xFF) + " ");
else
System.out.print(value);
System.out.println();
}
}
}
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Автозапуск в Java, как добавить приложение в автозапуск? 
Дата 22.8.2008, 01:27 (
Загрузка ...
А где взять этот Win32RegKey? 
reg.rar 18,53 Kb
