yaml语法
数据结构可以用类似大纲的缩排方式呈现,结构通过缩进来表示,连续的项目通过减号"-"来表示,map结构里面的key/value对用冒号":"来分隔。
例子:
配置类 YmalConfig:
import cn.hutool.json.JSONUtil;
import lombok.Data;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.stereotype.Component;
import java.util.List;
import java.util.Map;
@Data
@Component
@EnableConfigurationProperties
@ConfigurationProperties(prefix = "testymal")
public class YmalConfig {
private String configName;
private UserInfo userInfo;
private List<String> lists;
private List<UserInfo> listUserInfo;
private List<List<UserInfo>> listUserInfos;
private Map<String,String> maps;
private Map<String,List<String>> mapList;
private Map<String,UserInfo> mapUser;
private Map<String,List<UserInfo>> mapUserList;
@Override
public String toString() {
return JSONUtil.toJsonStr(this);
}
}
用户信息 UserInfo:
import lombok.Data;
@Data
public class UserInfo {
private Integer userId;
private String userName;
}
日志输出(这个类是用来 打印配置) LogConfig:
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.CommandLineRunner;
import org.springframework.stereotype.Component;
@Slf4j
@Component
public class LogConfig implements CommandLineRunner {
@Autowired
YmalConfig ymalConfig;
@Override
public void run(String... args) throws Exception {
log.info("ymalConfig 日志打印配置 : {}", ymalConfig);
}
}
yml配置文件:
testymal:
# String configName
configName: 我是ymal配置
# UserInfo userInfo
userInfo:
userId: 123
userName: 张三
# List<String> lists
lists:
- 1
- 2
- 3
- 4
# List<UserInfo> listUserInfo
listUserInfo:
- userId: 123
userName: 张三
- userId: 321
userName: 李四
# List<List<UserInfo>> listUserInfos
listUserInfos:
-
- userId: 123
userName: 张三
- userId: 321
userName: 李四
-
- userId: 456
userName: 王五
- userId: 654
userName: 赵六
# Map<String,String> maps
maps:
id: 我是id
name: 我是name
age: 我是age
# Map<String,List<String>> mapList
mapList:
userIds:
- 123
- 321
ips:
- 127.0.0.1
- 127.0.0.2
# Map<String,UserInfo> mapUser
mapUser:
123:
userId: 123
userName: 张三
321:
userId: 321
userName: 李四
# Map<String,List<UserInfo>> mapUserList
mapUserList:
A:
- userId: 123
userName: 张三
- userId: 321
userName: 李四
B:
- userId: 456
userName: 王五
- userId: 654
userName: 赵六
控制台日志打印
ymalConfig 日志打印配置 : {"configName":"我是ymal配置","userInfo":{"userId":123,"userName":"张三"},"lists":["1","2","3","4"],"listUserInfo":[{"userId":123,"userName":"张三"},{"userId":321,"userName":"李四"}],"listUserInfos":[[{"userId":123,"userName":"张三"},{"userId":321,"userName":"李四"}],[{"userId":456,"userName":"王五"},{"userId":654,"userName":"赵六"}]],"maps":{"id":"我是id","name":"我是name","age":"我是age"},"mapList":{"userIds":["123","321"],"ips":["127.0.0.1","127.0.0.2"]},"mapUser":{"123":{"userId":123,"userName":"张三"},"321":{"userId":321,"userName":"李四"}},"mapUserList":{"A":[{"userId":123,"userName":"张三"},{"userId":321,"userName":"李四"}],"B":[{"userId":456,"userName":"王五"},{"userId":654,"userName":"赵六"}]}}
把控制台打印的日志 :Json格式字符串,格式化后,效果如下:
{
"configName": "我是ymal配置",
"listUserInfo": [
{
"userId": 123,
"userName": "张三"
},
{
"userId": 321,
"userName": "李四"
}
],
"listUserInfos": [
[
{
"userId": 123,
"userName": "张三"
},
{
"userId": 321,
"userName": "李四"
}
],
[
{
"userId": 456,
"userName": "王五"
},
{
"userId": 654,
"userName": "赵六"
}
]
],
"lists": [
"1",
"2",
"3",
"4"
],
"mapList": {
"ips": [
"127.0.0.1",
"127.0.0.2"
],
"userIds": [
"123",
"321"
]
},
"mapUser": {
"123": {
"userId": 123,
"userName": "张三"
},
"321": {
"userId": 321,
"userName": "李四"
}
},
"mapUserList": {
"A": [
{
"userId": 123,
"userName": "张三"
},
{
"userId": 321,
"userName": "李四"
}
],
"B": [
{
"userId": 456,
"userName": "王五"
},
{
"userId": 654,
"userName": "赵六"
}
]
},
"maps": {
"age": "我是age",
"id": "我是id",
"name": "我是name"
},
"userInfo": {
"userId": 123,
"userName": "张三"
}
}
done.