package com.ideamov.platform.utils; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import java.net.URISyntaxException; import java.util.Properties; public class ConfigUtil { public static String getFileIO(String name,String fileURL){ Properties prop = new Properties(); InputStream in = ConfigUtil.class.getResourceAsStream(fileURL); try { prop.load(in); return prop.getProperty(name); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); }finally{ try { in.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } return null; } public static void writeData(String key, String value,String fileURL) { Properties prop = new Properties(); InputStream fis = null; OutputStream fos = null; try { java.net.URL url = ConfigUtil.class.getResource(fileURL); File file = new File(url.toURI()); if (!file.exists()) file.createNewFile(); fis = new FileInputStream(file); prop.load(fis); fis.close();//一定要在修改值之前关闭fis fos = new FileOutputStream(file); prop.setProperty(key, value); prop.store(fos, "Update '" + key + "' value"); fos.close(); } catch (IOException e) { System.err.println("Visit " + fileURL + " for updating " + value + " value error"); } catch (URISyntaxException e) { // TODO Auto-generated catch block e.printStackTrace(); } finally{ try { fos.close(); fis.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } } public static void main(String[] args) { //ConfigUtil.getFileIO("name", "gxyTest.properties"); ConfigUtil.writeData("name", "microsoft", "gxyTest.properties"); System.out.println(ConfigUtil.getFileIO("name", "gxyTest.properties")); } }
java修改,读取properties文件
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转载自elan1986.iteye.com/blog/1272930
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