package framework.util;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.FileOutputStream;
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import java.util.HashMap;
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import java.util.Iterator;
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import java.util.Map;
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import java.util.Properties;
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public class PropFile {
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/**
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* 打开*.properties
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*
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* @param fileName
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* @return
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*/
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public static PropFile open(String fileName){
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return new PropFile(fileName);
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}
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private PropFile(String fileName) {
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this.fileName = fileName;
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File f = new File(this.fileName);
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if(!f.exists()){
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try {
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FileOutputStream fos = new FileOutputStream(f);
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fos.flush();
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fos.close();
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} catch (Exception e) {
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}
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}
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}
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private String fileName;
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/**
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* 读取所有属性
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*
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* @return
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*/
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public Map<String, String> read(){
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Properties p = new Properties();// ���������ļ���ȡ��
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FileInputStream in = null;
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try {
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// propertiesFileName��test.properties
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in = new FileInputStream(fileName);
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p.load(in);
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in.close();// �����˹ر�
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Map<String, String> map = new HashMap<String, String>();
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Iterator<Object> it = p.keySet().iterator();
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while(it.hasNext()){
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String name = it.next().toString();
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map.put(name, p.getProperty(name, null));
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}
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return map;
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} catch (Throwable e) {
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}finally{
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try{
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in.close();
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}catch(Throwable e){
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}
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}
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return null;
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}
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/**
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* 读取指定属性
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*
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* @param propertyName
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* @param defaultValue
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* @return
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*/
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public String read(String propertyName, String defaultValue) {
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Properties p = new Properties();// ���������ļ���ȡ��
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FileInputStream in = null;
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try {
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// propertiesFileName��test.properties
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in = new FileInputStream(fileName);
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p.load(in);
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in.close();// �����˹ر�
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return p.getProperty(propertyName, defaultValue);
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} catch (Throwable e) {
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e.printStackTrace();
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}finally{
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try{
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in.close();
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}catch(Throwable e){
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}
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}
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return defaultValue;
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}
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/**
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* 写属性值
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* @param propertyName
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* @param propertyValue
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* @return
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*/
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public boolean write(String propertyName, String propertyValue) {
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Properties p = new Properties();
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FileInputStream in = null;
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FileOutputStream out = null;
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try{
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in = new FileInputStream(fileName);
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p.load(in);//
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in.close();
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}catch(Throwable e){
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}finally{
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try{
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in.close();
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}catch(Throwable e){
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}
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}
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try {
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p.setProperty(propertyName, propertyValue);// ��������ֵ���粻���Բ������½�
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out = new FileOutputStream(fileName);// �����
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p.store(out, "");// ��������ͷ���粻�����ã���Ѻ���һ����""�滻��
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out.flush();// ��ջ��棬д�����
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out.close();// �ر������
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return true;
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} catch (Throwable e) {
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}finally{
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try{
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out.close();
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}catch(Throwable e){
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}
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}
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return false;
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}
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}
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