Java代码如何将字符串保存到文件呢?

字符串保存文件的实现思路

字符串保存文件的实现思路:
    方式1：
	   Java11 Files.writeString
	方式2：
	   Java 7 Files.write
	方式3:
	   Apache Commons IO中的FileUtils.writeStringToFile
	方式4:
	   使用BufferedWriter将字符串写入到文件中

Java 11之Files.writeString

package com.java265;
 
import java.io.IOException;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.nio.file.StandardOpenOption;
 
public class StringToFileJava11 {
 
    public static void main(String[] args) {
 
        String content = "Hello java265.com";
        String path = "d:\\testInfo.log";
 
        try {
 
            // Java 11 , default StandardCharsets.UTF_8
            Files.writeString(Paths.get(path), content);
 
            // encoding
            // Files.writeString(Paths.get(path), content, StandardCharsets.US_ASCII);
 
            // extra options
            // Files.writeString(Paths.get(path), content, 
			//		StandardOpenOption.CREATE, StandardOpenOption.APPEND);
 
        } catch (IOException e) {
            e.printStackTrace();
        }
 
    }
}

Java 7之Files.write

package com.java265;
 
import java.io.IOException;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.nio.file.StandardOpenOption;
 
public class StringToFileJava7 {
 
    public static void main(String[] args) {
 
       String content = "Hello java265.com";
        String path = "d:\\testInfo.log";
		
        try {
 
            // Java 7
            Files.write(Paths.get(path), content.getBytes());
 
            // encoding
            // Files.write(Paths.get(path), content.getBytes(StandardCharsets.UTF_8));
 
            // extra options
            // Files.write(Paths.get(path), content.getBytes(), 
			//		StandardOpenOption.CREATE, StandardOpenOption.APPEND);
 
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

Apache Commons IO

1.引入依赖
pom.xml

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

//2.编写相应的代码
package com.java265;
 
import org.apache.commons.io.FileUtils;
 
import java.io.File;
import java.io.IOException;
import java.nio.charset.StandardCharsets;
 
public class CommonsIOExample {
 
    public static void main(String[] args) {
 
         String content = "Hello java265.com";
        String path = "d:\\testInfo.log";
 
        try {
            FileUtils.writeStringToFile(new File(path), content, StandardCharsets.UTF_8);
 
            // append
            // FileUtils.writeStringToFile(new File(path), content, StandardCharsets.UTF_8, true);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

BufferedWriter

package com.java265;
 
import java.io.BufferedWriter;
import java.io.FileWriter;
import java.io.IOException;
 
public class BufferedWriterExample {
 
    public static void main(String[] args) {
 
        String content = "Hello java265.com";
        String path = "d:\\testInfo.log";

        try (FileWriter writer = new FileWriter(path);
              BufferedWriter bw = new BufferedWriter(writer)) {
 
            bw.write(content);
 
        } catch (IOException e) {
            e.printStackTrace();
        }
 
    }
 
}