springboot读取resources下的文件

import org.springframework.core.io.ClassPathResource;
import java.io.InputStream;

public class ResourceReader {
    public static void main(String[] args) {
        try {
            ClassPathResource resource = new ClassPathResource("example.txt");
            InputStream inputStream = resource.getInputStream();
            // 处理输入流
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.core.io.Resource;
import org.springframework.core.io.ResourceLoader;
import java.io.InputStream;

public class ResourceReader {
    @Autowired
    private ResourceLoader resourceLoader;

    public void readFile() {
        try {
            Resource resource = resourceLoader.getResource("classpath:example.txt");
            InputStream inputStream = resource.getInputStream();
            // 处理输入流
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

import java.nio.file.Files;
import java.nio.file.Paths;
import java.io.IOException;

public class ResourceReader {
    public static void main(String[] args) {
        try {
            String content = new String(Files.readAllBytes(Paths.get("src/main/resources/example.txt")));
            System.out.println(content);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}