This article mainly introduces how to read the yml configuration file based on JAVA. The article introduces the example code in detail, which has certain reference value for everyone's learning or work. Friends who need it can refer to it.
Introduce the required dependencies first
org.yaml
snakeyaml
1.23
Read the code of YML file tool class
import org.apache.commons.;
import org.;
import org.;
import ;
import ;
import .*;
import ;
import ;
import ;
/**
* @author hunmeng
* @create 2020-01-10 20:34
*/
public class YmlUtils {
private static final Logger LOGGER = ();
private static String bootstrap_file = "classpath:";
private static Map result = new HashMap<>();
/**
* Get the file content of yml according to the file name
* @param filePath
* @param keys The first parameter corresponds to the first key, and the second parameter corresponds to the second key. For example, all the following are two parameters,
* getYmlByFileName(bootstrap_file,"spring", "name");
* @return
*/
public static Map getYmlByFileName(String filePath, String... keys) {
result = new HashMap<>();
if(filePath == null) filePath = bootstrap_file;
InputStream in = null;
try {
File file = (filePath);
in = new BufferedInputStream(new FileInputStream(file));
Yaml props = new Yaml();
Object obj = (in,);
Map param = (Map) obj;
for( entry:()){
String key = ();
Object val = ();
if ( != 0 && !keys[0].equals(key)){
continue;
}
if(val instanceof Map){
forEachYaml(key,(Map) val, 1, keys);
}else{
(key, ());
}
}
return result;
} catch (FileNotFoundException e) {
((),e);
}finally {
if (in != null){
try {
();
} catch (IOException e) {
((),e);
}
}
}
return null;
}
/**
* Get the value according to the key
* @param key
* @return
*/
public static String getValue(String key) throws FileNotFoundException {
Map map = getYmlByFileName(null);
if(map==null)return null;
return (key);
}
/**
* traverse the yml file and get the map collection
* @param key_str
* @param obj
* @param i
* @param keys
* @return
*/
public static Map forEachYaml(String key_str,Map obj, int i, String... keys){
for( entry:()){
String key = ();
Object val = ();
if ( > i && !keys[i].equals(key)){
continue;
}
String str_new = "";
if((key_str)){
str_new = key_str+ "."+key;
}else{
str_new = key;
}
if(val instanceof Map){
forEachYaml(str_new,(Map) val, ++i, keys);
i--;
}else{
(str_new,());
}
}
return result;
}
/**
* Getbootstrap.yml's name
* @return
*/
public static String getApplicationName() throws FileNotFoundException {
return getYmlByFileName(bootstrap_file).get("server.port");
}
/**
* Name obtained
* @return
*/
public static String getApplicationName1() throws FileNotFoundException {
String name = getYmlByFileName(bootstrap_file).get("");
return name + "center";
}
public static void main(String[] args) throws FileNotFoundException {
Map ymlByFileName = getYmlByFileName(bootstrap_file,"spring");
Set> entries = ();
for ( entry : entries) {
(()+"==="+());
}
(getApplicationName());
}
}
The above is all the content of this article. I hope it will be helpful to everyone's learning and I hope everyone will support it.