• springboot项目读取 .yml 配置文件,springboot中static静态变量读取yml文件配置


    application.yml

    # 系统配置
    server:
      # 服务器的HTTP端口,默认为8080
      port: 9006
      servlet:
        # 应用的访问路径
        context-path: /
    
    # 自定义配置
    url:
      ip: 127.0.0.1
      port: 8080
      protocol: http
    configs:
      str: test
      map:
        id: 0125
        name: name
        code: code
      list:
        - testStr1
        - testStr2
        - testStr3
      listMap:
        - id: 10235
          name: name1
        - id: 20357
          name: name2
        - id: 30568
          name: name3
    View Code

    方法一:

    使用 @ConfigurationProperties(prefix = "configs") 可以以string,map,list等数据类型返回配置信息:

    SysConfigs.java:

    package com.example.demo.common;
    
    import lombok.Data;
    import lombok.ToString;
    import org.springframework.boot.context.properties.ConfigurationProperties;
    import org.springframework.stereotype.Component;
    
    import java.util.List;
    import java.util.Map;
    
    @Data
    @ToString
    @Component
    @ConfigurationProperties(prefix = "configs")
    public class SysConfigs {
    
        /** String类型 **/
        private String str;
    
        /** map类型 **/
        private Map<String, String> map;
    
        /** list **/
        private List<String> list;
    
        /** list **/
        private List<Map<String, String>> listMap;
    }
    View Code

    方法二:

    在使用 @Component,@service,@RestController,@Controller 等注解的java类中的属性上使用@Value("${url.ip}")进行配置读取:

    ConfigsController.java:

    package com.example.demo.controller;
    
    import com.alibaba.fastjson.JSONObject;
    import com.example.demo.common.SysConfigs;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.beans.factory.annotation.Value;
    import org.springframework.http.ResponseEntity;
    import org.springframework.web.bind.annotation.GetMapping;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.RestController;
    
    @RestController
    @RequestMapping("configs")
    public class ConfigsController {
    
        @Value("${url.ip}")
        private String ip;
    
        @Value("${url.port}")
        private String port;
    
        @Value("${url.protocol}")
        private String protocol;
    
        @Autowired
        private SysConfigs sysConfigs;
    
        @GetMapping("get-all")
        public ResponseEntity<JSONObject> getAll() {
            JSONObject json = new JSONObject();
            json.put("str", sysConfigs.getStr());
            json.put("map", sysConfigs.getMap());
            json.put("list", sysConfigs.getList());
            json.put("listMap", sysConfigs.getListMap());
            json.put("url", protocol + "://" + ip + ":" + port);
            return ResponseEntity.ok().body(json);
        }
    }
    View Code

    最终效果:

    static静态变量读取yml文件

    application.yml:

    server:
      # 访问相关配置
      port: 9090
      tomcat:
        uri-encoding: utf-8
      servlet:
        context-path: /
    
    spring:
      # 数据库配置
      datasource:
        driver-class-name: oracle.jdbc.driver.OracleDriver
        url: jdbc:oracle:thin:@127.0.0.1:1521:orcl
        username: username
        password: password
      mvc:
        # spring boot 视图配置
        view:
          prefix: /WEB-INF/jsp/
          suffix: .jsp
        # 静态文件访问配置
    #    static-path-pattern: /static/**
    #  web:
    #    resources:
    #      static-locations:
    #      - classpath:/static/
    #      - classpath:/templates/
    
    mybatis:
      mapper-locations: classpath:mybatis/mappers/*Mapper.xml
      type-aliases-package: com.sinosoft.tp.system.entity
      config-location: classpath:mybatis/mybatis-config.xml
    
    configs:
      page:
        show-count: 10
        pd:
          test1: test1
          test2: 2
          test3: 5.9
      test:
        name: name1
        age: 13
        height: 1.8
        likes:
          - 篮球
          - 足球
          - 橄榄球
      likes2:
        - 网球
        - 棒球
        - 羽毛球
    
    
    debug: true
    View Code

    ConstConfigs.java

    package com.sinosoft.tp.constants;
    
    import com.sinosoft.tp.utils.Page;
    import lombok.Data;
    import lombok.EqualsAndHashCode;
    import org.springframework.beans.factory.annotation.Value;
    import org.springframework.boot.context.properties.ConfigurationProperties;
    import org.springframework.stereotype.Component;
    
    import java.util.List;
    import java.util.Map;
    
    @Data
    @Component
    @ConfigurationProperties(prefix = "configs")
    public class ConstConfigs {
    
        // 静态 实体 映射
        public static Page page;
        // 静态 单值 字符串 映射
        public static String name;
        // 静态 单值 数字 映射
        public static Integer pageSize;
        // 静态 集合 映射
        public static List<String> likes2;
        // 静态 map 映射
        public static Map<String, Object> test;
    
        public void setPage(Page page) {
            ConstConfigs.page = page;
        }
    
        @Value("${configs.page.show-count}") // 使用 @Value 只能对单一值进行取值,例如:String,Integer等,集合或map等类型的会抛异常
        public void setPageSize(Integer pageSize) {
            ConstConfigs.pageSize = pageSize;
        }
    
        @Value("${configs.test.name}") // 使用 @Value 只能对单一值进行取值,例如:String,Integer等,集合或map等类型的会抛异常
        public void setName(String name) {
            ConstConfigs.name = name;
        }
    
        public void setLikes2(List<String> likes2) {
            ConstConfigs.likes2 = likes2;
        }
    
        public void setTest(Map<String, Object> test) {
            ConstConfigs.test = test;
        }
    }
    View Code

    TestController.java

    package com.sinosoft.tp.system.controller;
    
    import com.sinosoft.tp.base.BaseController;
    import com.sinosoft.tp.base.Result;
    import com.sinosoft.tp.constants.ConstConfigs;
    import com.sinosoft.tp.utils.Page;
    import com.sinosoft.tp.utils.RSAUtil;
    import com.sinosoft.tp.utils.Results;
    import lombok.extern.slf4j.Slf4j;
    import net.sf.json.JSONObject;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Controller;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.ResponseBody;
    import org.springframework.web.servlet.ModelAndView;
    
    import java.io.IOException;
    
    @Slf4j
    @Controller
    public class TestController extends BaseController {
    
        @ResponseBody
        @RequestMapping("test")
        public Result test() {
            JSONObject jsonObject = new JSONObject();
            jsonObject.put("str-name", ConstConfigs.name);
            jsonObject.put("int-pageSize", ConstConfigs.pageSize);
            jsonObject.put("list-likes2", ConstConfigs.likes2);
            jsonObject.put("map-test", ConstConfigs.test);
            jsonObject.put("entity-page", ConstConfigs.page);
            return Results.successWithData(jsonObject);
        }
    
    }
    View Code

    请求 http://127.0.0.1:9090/test 最终效果:

     细心的你可能会发现,在SysConfigs.java中多了两个注解 @Data  @ToString,而且并没有写getter和setter方法,这是因为在idea中安装了lombok,只需要关心有哪些属性就行,可以在开发中省好多事儿。

    每天进步一点点,点滴记录,积少成多。

    以此做个记录,

    如有不足之处还望多多留言指教!

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  • 原文地址:https://www.cnblogs.com/jindao3691/p/14973144.html
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