90 lines
3.0 KiB
Java
90 lines
3.0 KiB
Java
package cn.edu.scau.biubiusuisui.utils;
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import cn.edu.scau.biubiusuisui.exception.ProtocolNotSupport;
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import cn.edu.scau.biubiusuisui.log.FXPlusLoggerFactory;
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import cn.edu.scau.biubiusuisui.log.IFXPlusLogger;
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import java.io.*;
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import java.net.URL;
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import java.net.URLDecoder;
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/**
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* @author jack
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* @version 1.0
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* @date 2019/6/25 7:01
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* @since JavaFX2.0 JDK1.8
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*/
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public class FileUtil {
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private static IFXPlusLogger logger = FXPlusLoggerFactory.getLogger(FileUtil.class);
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/**
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* @param filePath
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* @return 返回URL
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* @throws ProtocolNotSupport
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* @decription 从resources文件夹中读取File
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* 输出如： file:/Users/suisui/workspace/Idea/JavaFX-Plus/target/classes/image/icon.png
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* @version 1.0
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*/
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public URL getFilePathFromResources(String filePath) throws ProtocolNotSupport {
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return FileUtil.class.getClassLoader().getResource(filePath);
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}
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/**
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* @param filePath
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* @return
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* @description 读取resources文件夹下的file，相对于resources的文件路径，如 resources/config.conf 则只需 config.conf
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*/
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public static String readFileFromResources(String filePath) throws UnsupportedEncodingException {
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URL url = FileUtil.class.getClassLoader().getResource(filePath);
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if (url != null) {
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String path = StringUtil.getRootPath(url);
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return readFile(path);
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}
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return "";
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}
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/**
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* @param filePath 绝对路径或相对路径
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* @return 返回文件内容
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* @description 读取文件
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*/
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public static String readFile(String filePath) {
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StringBuffer content = new StringBuffer();
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try (FileReader reader = new FileReader(filePath);
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BufferedReader br = new BufferedReader(reader) // 建立一个对象，它把文件内容转成计算机能读懂的语言
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) {
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String temp;
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while ((temp = br.readLine()) != null) {
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// 一次读入一行数据
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content.append(temp + "\r\n");
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}
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} catch (IOException e) {
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logger.error(e.getMessage());
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e.printStackTrace();
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}
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return content.toString();
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}
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/**
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* @param filePath 写出文件的地址
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* @param content 文件内容
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* @description 写文件
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*/
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public static void writeFile(String filePath, String content) {
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try {
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File writeName = new File(filePath); // 相对路径，如果没有则要建立一个新的output.txt文件
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writeName.createNewFile(); // 创建新文件,有同名的文件的话直接覆盖
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try (FileWriter writer = new FileWriter(writeName);
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BufferedWriter out = new BufferedWriter(writer)
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) {
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out.write(content);
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out.flush(); // 把缓存区内容压入文件
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}
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} catch (IOException e) {
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logger.error(e.getMessage());
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e.printStackTrace();
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}
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}
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}
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