IO工具类 FileUtils

导入IO工具类

    <dependencies>
        <dependency>
            <groupId>commons-io</groupId>
            <artifactId>commons-io</artifactId>
            <version>2.6</version>
        </dependency>
    </dependencies>

读取，写入文件

 String result = FileUtils.readFileToString(new File(filePath), "utf-8");

FileUtils.writeStringToFile(new File(filePath), data, "utf-8");