一、引入依赖

<dependency><groupId>org.yaml</groupId><artifactId>snakeyaml</artifactId><version>1.32</version>
</dependency>

二、读取yaml内容工作代码

（1）上传yaml文件

读取yaml文件并校验

package com.util;import com.alibaba.fastjson.JSONObject;
import lombok.extern.slf4j.Slf4j;
import org.yaml.snakeyaml.Yaml;
import org.yaml.snakeyaml.parser.ParserException;import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.util.HashMap;
import java.util.Map;@Slf4j
public class YmlTransUtil {/*** 读取并校验语法 yaml** @param file 需要读取的文件* @return Map*/public static Map getReadAbleYaml(File file) {Map obj = new HashMap();try (FileInputStream ins = new FileInputStream(file)) {Yaml yaml = new Yaml();obj = yaml.load(ins);} catch (FileNotFoundException exception) {log.error("yaml文件不存在", exception);obj.put("error", "yaml文件不存在");} catch (ParserException exception) {log.error("yaml文件格式错误！", exception);obj.put("error", "yaml文件格式错误！\n" + exception.getMessage());} catch (Exception exception) {log.error("getReadAbleYaml error: ", exception);}return obj;}
}

（2） 根据yaml文件路径

src.resource 下的yaml文件

package com.utils;import lombok.extern.slf4j.Slf4j;
import org.apache.ibatis.io.Resources;
import org.yaml.snakeyaml.Yaml;
import org.yaml.snakeyaml.parser.ParserException;import java.io.FileNotFoundException;
import java.io.InputStream;
import java.util.HashMap;
import java.util.Map;@Slf4j
public class YamlUtil {/*** 读取 ymal** @param path 需要读取的文件路径* @return Map*/public static Map getReadAbleYaml(String path) {Map obj = new HashMap();try( InputStream ins = Resources.getResourceAsStream(path)) {Yaml yaml = new Yaml();obj = yaml.load(ins);} catch (FileNotFoundException exception){log.error("yaml文件不存在");obj.put("error", "yaml文件不存在");}  catch (ParserException exception){log.error("yaml文件格式错误！");log.error(exception.getMessage());obj.put("error", "yaml文件格式错误！\n" + exception.getMessage());}  catch (Exception exception) {log.error(exception.getMessage());}return obj;}
}

三、应用代码

（1）上传yaml文件

java

@RequestMapping(value = "/getYamlInfo", method = RequestMethod.POST)public RestResponse getYamlInfo(@RequestParam(value = "file") MultipartFile file) {RestResponse restResponse = new RestResponse();if (file == null) {log.info("getYamlInfo error: file is not empty.");return RestResponse.setErrorResponse(restResponse, "getYamlInfo error: file is not empty.");}try {// 校验合法性File newFile = File.createTempFile("temp", ".yml");file.transferTo(newFile);Map properties = YmlTransUtil.getReadAbleYaml(newFile);if (properties.get("error") != null) {return RestResponse.setErrorResponse(restResponse, properties.get("error").toString());}} catch (Exception exception) {log.error("getYamlInfo error.", exception);return RestResponse.setErrorResponse(restResponse, "getYamlInfo error.");}return restResponse;}

（2）读取项目src.resource下的yaml

Map properties = YamlUtil.getReadAbleYaml("text.yml");