Java读取静态文本文件的两个方式

1. 读取文件路径及文件内容

配置在resource目录下

2. 获取方式

方式一

    public List<String> getTextMethod1() {
        // 读取配置文件
        List<String> list = new ArrayList<>();
        // 从AppClassLoader类加载器获取资源
        InputStream inputStream = this.getClass().getClassLoader().getResourceAsStream("static/area.txt");
        BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream));
        String line;
        try {
            while ((line = reader.readLine()) != null) {
                list.add(line);
            }
        } catch (Exception e) {
            throw new RuntimeException("获取异常！");
        } finally {
            try {
                reader.close();
                inputStream.close();
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
        return list;
    }

方式二

    public List<String> getTextMethod2() {
        List<String> list;
        try {
            Resource resource = new ClassPathResource("static/area.txt");
            Path myAllowWordsPath = Paths.get(resource.getFile().getPath());
            list = Files.readAllLines(myAllowWordsPath, StandardCharsets.UTF_8);
        } catch (IOException ioException) {
            throw new RuntimeException("获取异常！");
        }
        return list;
    }

package com.saas.xxx.controller;

import com.saas.xxx.common.AjaxResult;
import io.swagger.annotations.Api;
import org.springframework.core.io.ClassPathResource;
import org.springframework.core.io.Resource;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.ArrayList;
import java.util.List;

/**
 * @author : Cookie
 * date : 2023/12/18
 */
@RestController("/textArea")
@Api(tags = "测试获取静态文件")
public class TextAreaController {

    @GetMapping("/getText1")
    public AjaxResult getText1() {
        return AjaxResult.success(getTextMethod1());
    }

    @GetMapping("/getText2")
    public AjaxResult getText2() {
        return AjaxResult.success(getTextMethod2());
    }
	
	// 方式一
    public List<String> getTextMethod1() {
        // 读取配置文件
        List<String> list = new ArrayList<>();
        // 从AppClassLoader获取资源
        InputStream inputStream = this.getClass().getClassLoader().getResourceAsStream("static/area.txt");
        BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream));
        String line;
        try {
            while ((line = reader.readLine()) != null) {
                list.add(line);
            }
        } catch (Exception e) {
            throw new RuntimeException("获取异常！");
        } finally {
            try {
                reader.close();
                inputStream.close();
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
        return list;
    }
	
	// 方式二
    public List<String> getTextMethod2() {
        List<String> list;
        try {
            Resource resource = new ClassPathResource("static/area.txt");
            Path myAllowWordsPath = Paths.get(resource.getFile().getPath());
            list = Files.readAllLines(myAllowWordsPath, StandardCharsets.UTF_8);
        } catch (IOException ioException) {
            throw new RuntimeException("获取异常！");
        }
        return list;
    }
}

3. 结果