enum<->int
enum -> int: int i = enumType.value.ordinal();int -> enum: enumType b= enumType.values()[i];
enum<->String
enum -> String: enumType.name()
String -> enum: enumType.valueOf(name);
--------------------------------------------------------------------------
http://stackoverflow.com/questions/604424/java-enum-converting-string-to-enum
有时间整理测试一下这个帖子中的内容，同事参考《Effective Java中文版第2版》第30条内容，更新本帖。
---------------------------------------------------------------------------
下面是Enum和字符串类型转化的例子。
第一个例子：字符串和枚举值不相同,注意覆盖toString方法。 import java.util.HashMap;import java.util.Map; /* * * * @author admin */ public enum Blah { A( " text1 " ), B( " text2 " ), C( " text3 " ), D( " text4 " ); private String text; Blah(String text) { this .text = text; } public String getText() { return this .text; } // Implementing a fromString method on an enum type private static final Map < String, Blah > stringToEnum = new HashMap < String, Blah > (); static { // Initialize map from constant name to enum constant for (Blah blah : values()) { stringToEnum.put(blah.toString(), blah); } } // Returns Blah for string, or null if string is invalid public static Blah fromString(String symbol) { return stringToEnum. get (symbol); } @Override public String toString() { return text; }} 第2个例子，字符串和枚举值相同，这个更为简单。import java.util.HashMap;import java.util.Map; /* * * * @author admin */ public enum Blah { A, B, C, D; // Implementing a fromString method on an enum type private static final Map < String, Blah > stringToEnum = new HashMap < String, Blah > (); static { // Initialize map from constant name to enum constant for (Blah blah : values()) { stringToEnum.put(blah.toString(), blah); } } // Returns Blah for string, or null if string is invalid public static Blah fromString(String symbol) { return stringToEnum. get (symbol); }}
至于整形和Enum之间的转换，也可类似处理。
转载于:https://www.cnblogs.com/cuizhf/archive/2011/08/22/2150046.html
相关资源：Java Enum和String及int的相互转化示例