您可以这样实现：
public void saveParamChanges() { try { // create and set properties into properties object Properties props = new Properties(); props.setProperty("Prop1", "toto"); props.setProperty("Prop2", "test"); props.setProperty("Prop3", "tata"); // get or create the file File f = new File("app-properties.properties"); OutputStream out = new FileOutputStream( f ); // write into it DefaultPropertiesPersister p = new DefaultPropertiesPersister(); p.store(props, out, "Header COmment"); } catch (Exception e ) { e.printStackTrace(); }}资源
编辑：使用来自org.springframework.Util的defaultPropertiesPersiter更新
