java 注册表工具类

野性酷女 2022-08-26 14:27 161阅读 0赞

package com.ctl.work;
    
    import java.io.*;
    import java.util.prefs.*;
    
    public class RegisterUtil {
    
    	/**
    	 * @category systemRoot HKEY_LOCAL_MACHINE\Software\JavaSoft\prefs\u4E0B\u5199\u5165\u6CE8\u518C\u8868\u503C
    	 * @param key
    	 * @param String
    	 *            value
    	 * @param nodeDir\u5728prefs\u4E0B\u9762\u7684\u67D0\u4E2A\u4EBA\u76EE\u5F55
    	 *            \u4F8B\u5982/com/ctl/util
    	 */
    	public static void putStringSystemRoot(String key, String value,
    			String nodeDir) {
    		if ("".equals(nodeDir) || null == nodeDir) {
    			nodeDir = "/ctl";
    		}
    		Preferences pre = Preferences.systemRoot().node(nodeDir);
    		pre.put(key, value);
    		// prefsdemo.
    		/**//* \u5BFC\u51FA\u5230XML\u6587\u4EF6 */
    		FileOutputStream fos;
    		try {
    			fos = new FileOutputStream("registerSrc.xml");
    			pre.exportNode(fos);
    			fos.close();
    		} catch (Exception e) {
    			System.err.println(" Cannot export nodes:  " + e);
    		}
    	}
    
    	/**
    	 * @category \u4F7F\u7528\u9ED8\u8BA4\u7684\u8DEF\u5F84
    	 * @category systemRoot HKEY_LOCAL_MACHINE\Software\JavaSoft\prefs\u4E0B\u5199\u5165\u6CE8\u518C\u8868\u503C
    	 * @param key
    	 * @param String
    	 *            value
    	 */
    	public static void putStringSystemRoot(String key, String value) {
    		putStringSystemRoot(key, value, null);
    	}
    
    	/**
    	 * @category systemRoot HKEY_LOCAL_MACHINE\Software\JavaSoft\prefs\u4E0B\u5199\u5165\u6CE8\u518C\u8868\u503C
    	 * @param key
    	 * @param int value
    	 * @param nodeDir\u5728prefs\u4E0B\u9762\u7684\u67D0\u4E2A\u4EBA\u76EE\u5F55
    	 *            \u4F8B\u5982/com/ctl/util
    	 */
    	public static void putIntSystemRoot(String key, int value, String nodeDir) {
    		if ("".equals(nodeDir) || null == nodeDir) {
    			nodeDir = "/ctl";
    		}
    		Preferences pre = Preferences.systemRoot().node(nodeDir);
    		pre.putInt(key, value);
    		try {
    			FileOutputStream fos = new FileOutputStream("registerSrc.xml");
    			pre.exportNode(fos);
    			fos.close();
    		} catch (Exception e) {
    			System.err.println(" Cannot export nodes:  " + e);
    		}
    
    	}
    
    	/**
    	 * @category \u4F7F\u7528\u9ED8\u8BA4\u7684\u8DEF\u5F84
    	 * @category systemRoot HKEY_LOCAL_MACHINE\Software\JavaSoft\prefs\u4E0B\u5199\u5165\u6CE8\u518C\u8868\u503C
    	 * @param key
    	 * @param int value
    	 * @param nodeDir\u5728prefs\u4E0B\u9762\u7684\u67D0\u4E2A\u4EBA\u76EE\u5F55
    	 *            \u4F8B\u5982/com/ctl/util
    	 */
    	public static void putIntSystemRoot(String key, int value) {
    		putIntSystemRoot(key, value, null);
    	}
    
    	/**
    	 * 
    	 * @param key
    	 *            \u8981\u67E5\u627E\u7684\u503C\u7684\u952E
    	 * @param def
    	 *            \u4E0D\u5B58\u5728\u65F6\u8FD4\u56DE def
    	 * @param nodeDir
    	 *            \u8DEF\u5F84
    	 * @return
    	 */
    	public static int getIntFromSystemRoot(String key, int def, String nodeDir) {
    		if ("".equals(nodeDir) || null == nodeDir) {
    			nodeDir = "/ctl";
    		}
    		Preferences pre = Preferences.systemRoot().node(nodeDir);
    		return pre.getInt(key, -10000);
    	}
    
    	/**
    	 * @category \u4F7F\u7528\u9ED8\u8BA4\u7684node\u8DEF\u5F84
    	 * @param key
    	 * @param def
    	 * @return
    	 */
    	public static int getIntFromSystemRoot(String key, int def) {
    		return getIntFromSystemRoot(key, def, null);
    	}
    
    	/**
    	 * @category \u4F7F\u7528\u9ED8\u8BA4\u7684 \u9519\u8BEF\u8FD4\u56DE\u503C
    	 * @param key
    	 * @param def
    	 * @return
    	 */
    	public static int getIntFromSystemRoot(String key, String nodeDir) {
    		return getIntFromSystemRoot(key, -10000, nodeDir);
    
    	}
    
    	/**
    	 * @category \u4F7F\u7528\u9ED8\u8BA4\u7684 \u9519\u8BEF\u8FD4\u56DE\u503C \u548Cnode\u8DEF\u5F84
    	 * @param key
    	 * @return
    	 */
    	public static int getIntFromSystemRoot(String key) {
    		return getIntFromSystemRoot(key, -10000, null);
    
    	}
    
    	/**
    	 * 
    	 * @param key
    	 *            \u8981\u67E5\u627E\u7684\u503C\u7684\u952E
    	 * @param def
    	 *            \u4E0D\u5B58\u5728\u65F6\u8FD4\u56DE def
    	 * @param nodeDir
    	 *            \u8DEF\u5F84
    	 * @return
    	 */
    	public static String getStringFromSystemRoot(String key, String def,
    			String nodeDir) {
    		if ("".equals(nodeDir) || null == nodeDir) {
    			nodeDir = "/ctl";
    		}
    		if ("".equals(def) || null == def) {
    			def = "\u4E0D\u5B58\u5728";
    		}
    
    		Preferences pre = Preferences.systemRoot().node(nodeDir);
    		return pre.get(key, def);
    	}
    
    	/**
    	 * @category \u4F7F\u7528\u9ED8\u8BA4\u7684 node\u8DEF\u5F84
    	 * @param key
    	 * @param def
    	 * @return
    	 */
    	public static String getStringFromSystemRoot_NodeDir(String key, String def) {
    		return getStringFromSystemRoot(key, def, null);
    	}
    
    	/**
    	 * @category \u4F7F\u7528\u9ED8\u8BA4\u7684 \u9519\u8BEF\u8FD4\u56DE\u503C
    	 * @param key
    	 * @param nodeDir
    	 * @return
    	 */
    	public static String getStringFromSystemRoot_Def(String key, String nodeDir) {
    		return getStringFromSystemRoot(key, null, nodeDir);
    	}
    
    	/**
    	 * @category \u4F7F\u7528\u9ED8\u8BA4\u7684 \u9519\u8BEF\u8FD4\u56DE\u503C \u548Cnode\u8DEF\u5F84
    	 * @param key
    	 * @return
    	 */
    	public static String getStringFromSystemRoot(String key) {
    		return getStringFromSystemRoot(key, null, null);
    	}
    
    	/**
    	 * @category \u5220\u9664\u952E \u4E3Akey \u7684\u6CE8\u518C\u9879
    	 * @param key
    	 * @param nodeDir
    	 *            \u8981\u5220\u9664\u7684\u9879\u7684\u76EE\u5F55
    	 */
    	public static void removeKeySystemRoot(String key, String nodeDir) {
    		if ("".equals(nodeDir) || null == nodeDir) {
    			nodeDir = "/ctl";
    		}
    		Preferences pre = Preferences.systemRoot().node(nodeDir);
    		pre.remove(key);
    	}
    
    	public static void removeKeySystemRoot(String key) {
    		removeKeySystemRoot(key, null);
    	}
    
    	public static void main(String[] args) {
    		// RegisterUtil.putIntSystemRoot("times", 3,"");
    		System.out.println(RegisterUtil.getIntFromSystemRoot("times", -1, ""));
    	}
    }