JYaml文件流读取/写入Yaml配置文件
yaml配置文件格式规范：- 表示sequence(list列表结构)，: 表示map键值对
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#以下是示例yaml结构
age: 23
children:
-
age: 8
name: mary1
sex: man
-
age: 9
name: simon2
sex: fatel
name: simon.zhang
sex: man
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1.准备工作，创建Persion实体类
package com.yaml.entity;
import java.util.List;
/**
* Created by simon on 16-6-12.
*/
public class Person {
private String name;
private int age;
private String Sex;
private List
//省略 getter and setter method.....
}
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2.实现读取/写入yaml配置文件
package com.yaml;
import com.yaml.entity.Person;
import org.ho.yaml.Yaml;
import org.junit.Test;
import java.io.File;
import java.io.FileNotFoundException;
import java.util.ArrayList;
import java.util.List;
/**
* Hello world!
*/
public class App {
//写入yaml配置文件
@Test
public void write() {
/* Initialize data. */
Person father = new Person();
father.setName("simon.zhang");
father.setAge(23);
father.setSex("man");
List
for (int i = 8; i < 10; i++) {
Person child = new Person();
if (i % 2 == 0) {
child.setSex("man");
child.setName("mary" + (i - 7));
} else {
child.setSex("fatel");
child.setName("simon" + (i - 7));
}
child.setAge(i);
children.add(child);
}
father.setChildren(children);
/* Export data to a YAML file. */
File dumpFile = new File(System.getProperty("user.dir") + "/test/src/main/conf/testYaml.yaml");
try {
Yaml.dump(father, dumpFile);
} catch (FileNotFoundException e) {
e.printStackTrace();
}
}
//读取yaml配置文件
@Test
public void read() throws FileNotFoundException {
File dumpFile=new File(System.getProperty("user.dir") + "/test/src/main/conf/testYaml.yaml");
Person father = (Person) Yaml.loadType(dumpFile, Person.class);
StringBuilder stringBuilder=new StringBuilder();
stringBuilder.append(father.getName())
.append("\t")
.append(father.getSex())
.append("\t")
.append(father.getAge())
.append("\t")
.append(father.getChildren().size());
System.out.println(stringBuilder.toString());
}
}
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Map结构的yaml文件
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JDBC.driver: com.mysql.jdbc.Driver
JDBC.url: "jdbc:mysql://127.0.0.1:3306/shipping_local?autoReconnect=true&autoReconnectForPools=true&useUnicode=true&characterEncoding=utf8"
JDBC.username: shipping
JDBC.password: shipping
JDBC.autoCommit: false
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读取Map结构
//读取yaml配置文件Map结构
@Test
public void read2() throws FileNotFoundException {
File dumpFile=new File(System.getProperty("user.dir") + "/test/src/main/conf/testYaml.yaml");
Map father =Yaml.loadType(dumpFile, HashMap.class);
for(Object key:father.keySet()){
System.out.println(key+":\t"+father.get(key).toString());
}
}
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打印结果如下：
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提供 Maven pox.xml 作为参考
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作者：一缕阳光直射你的心扉
来源：CSDN
原文：https://blog.csdn.net/u013410747/article/details/51647535
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