可以考虑使用 JavaFX 自带的 javafx.util.Pair 。但是如果你是项目是SpringBoot的话,可能会遇到运行正常但是打包为jar包的时候找不到包的错误。这个时候可以考虑复制Pair的内容到自己的工具类包下,而非去引入JavaFX 。
Pair.java
import java.io.Serializable;
/**
* <p>A convenience class to represent name-value pairs.</p>
* @since JavaFX 2.0 (javafx.util.Pair;)
*/
public class Pair <K,V> implements Serializable {
/**
* Key of this <code>Pair</code>.
*/
private K key;
/**
* Gets the key for this pair.
* @return key for this pair
*/
public K getKey() { return key; }
/**
* Value of this this <code>Pair</code>.
*/
private V value;
/**
* Gets the value for this pair.
* @return value for this pair
*/
public V getValue() { return value; }
/**
* Creates a new pair
* @param key The key for this pair
* @param value The value to use for this pair
*/
public Pair( K key, V value) {
this.key = key;
this.value = value;
}
/**
* <p><code>String</code> representation of this
* <code>Pair</code>.</p>
*
* <p>The default name/value delimiter '=' is always used.</p>
*
* @return <code>String</code> representation of this <code>Pair</code>
*/
@Override
public String toString() {
return key + "=" + value;
}
/**
* <p>Generate a hash code for this <code>Pair</code>.</p>
*
* <p>The hash code is calculated using both the name and
* the value of the <code>Pair</code>.</p>
*
* @return hash code for this <code>Pair</code>
*/
@Override
public int hashCode() {
// name's hashCode is multiplied by an arbitrary prime number (13)
// in order to make sure there is a difference in the hashCode between
// these two parameters:
// name: a value: aa
// name: aa value: a
return key.hashCode() * 13 + (value == null ? 0 : value.hashCode());
}
/**
* <p>Test this <code>Pair</code> for equality with another
* <code>Object</code>.</p>
*
* <p>If the <code>Object</code> to be tested is not a
* <code>Pair</code> or is <code>null</code>, then this method
* returns <code>false</code>.</p>
*
* <p>Two <code>Pair</code>s are considered equal if and only if
* both the names and values are equal.</p>
*
* @param o the <code>Object</code> to test for
* equality with this <code>Pair</code>
* @return <code>true</code> if the given <code>Object</code> is
* equal to this <code>Pair</code> else <code>false</code>
*/
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o instanceof Pair) {
Pair pair = (Pair) o;
if (key != null ? !key.equals(pair.key) : pair.key != null) return false;
if (value != null ? !value.equals(pair.value) : pair.value != null) return false;
return true;
}
return false;
}
}
使用例子
List<Pair<Integer, String>> enumsList = new ArrayList<Pair<Integer, String>>();
for (ChannelTypeEnums channelTypeEnums : ChannelTypeEnums.values()) {
enumsList.add(new Pair<Integer, String>(channelTypeEnums.getCode(),channelTypeEnums.getMsg()));
}