com.jeesuite.mybatis.kit.CacheKeyUtils Maven / Gradle / Ivy
/**
*
*/
package com.jeesuite.mybatis.kit;
import java.math.BigDecimal;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Date;
import java.util.List;
import org.apache.commons.lang3.builder.ToStringBuilder;
import org.apache.commons.lang3.builder.ToStringStyle;
/**
* @description
* @author vakin
* @date 2016年11月1日
*/
public class CacheKeyUtils {
private static final String CARTSET_UTF_8 = "UTF-8";
private static final String MD5_NAME = "MD5";
/**
* MD5加密
* @param content
* @return
*/
private static String md5(Object content) {
String keys = null;
if (content == null) {
return null;
}
try {
MessageDigest md = MessageDigest.getInstance(MD5_NAME);
byte[] bPass = String.valueOf(content).getBytes(CARTSET_UTF_8);
md.update(bPass);
keys = bytesToHexString(md.digest());
} catch (NoSuchAlgorithmException aex) {
System.out.println(aex);
} catch (java.io.UnsupportedEncodingException uex) {
System.out.println(uex);
}
return keys.toLowerCase();
}
private static String bytesToHexString(byte[] bArray) {
StringBuffer sb = new StringBuffer(bArray.length);
String sTemp;
for (int i = 0; i < bArray.length; i++) {
sTemp = Integer.toHexString(0xFF & bArray[i]);
if (sTemp.length() < 2) {
sb.append(0);
}
sb.append(sTemp.toUpperCase());
}
return sb.toString();
}
public static String toString(Object obj){
if(obj == null)return "_";
if(isSimpleDataType(obj)){
return obj.toString();
}else if(obj instanceof Collection){
String toString = obj.toString().replaceAll("\\s{0,}", "");
return toString.length() > 32 ? md5(toString) : toString;
}else{
String toString = ToStringBuilder.reflectionToString(obj, ToStringStyle.SHORT_PREFIX_STYLE);
return toString.length() > 32 ? md5(toString) : toString;
}
}
/**
* 生成缓存key
* @param prefix
* @param args
* @return
*/
public static String generate(String prefix,Object...args){
if(args == null || args.length == 0)return prefix;
StringBuilder keyBuilder = new StringBuilder(prefix);
String keyString = null;
if(args != null && args.length > 0){
keyBuilder.append(":");
StringBuilder argsBuilder = new StringBuilder();
for (int i = 0; i < args.length; i++) {
if(args[i] == null){
argsBuilder.append("_null");
}else if(isSimpleDataType(args[i])){
argsBuilder.append(args[i].toString());
}else if(args[i] instanceof Collection){
argsBuilder.append(args[i].toString().replaceAll("\\s{0,}", ""));
}else{
argsBuilder.append(ToStringBuilder.reflectionToString(args[i], ToStringStyle.SHORT_PREFIX_STYLE));
}
if(i < args.length - 1)argsBuilder.append("_");
}
keyString = argsBuilder.length() > 32 ? md5(argsBuilder) : argsBuilder.toString();
keyBuilder.append(keyString);
}
return keyBuilder.toString();
}
private static boolean isSimpleDataType(Object o) {
Class clazz = o.getClass();
return
(
clazz.equals(String.class) ||
clazz.equals(Integer.class)||
clazz.equals(Byte.class) ||
clazz.equals(Long.class) ||
clazz.equals(Double.class) ||
clazz.equals(Float.class) ||
clazz.equals(Character.class) ||
clazz.equals(Short.class) ||
clazz.equals(BigDecimal.class) ||
clazz.equals(Boolean.class) ||
clazz.equals(Date.class) ||
clazz.isPrimitive()
);
}
public static void main(String[] args) {
List