Java中的字符串拼接

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Java中的字符串拼接

1、设计源码

/** * @Title:IndexOf.java * @Package:com.you.freemarker.model * @Description: * @author:Youhaidong(游海东) * @date:2014-6-7 下午11:11:05 * @version V1.0 */package com.you.freemarker.model;/** * 类功能说明 * 类修改者 修改日期 * 修改说明 * <p>Title:IndexOf.java</p> * <p>Description:游海东个人开发</p> * <p>Copyright:Copyright(c)2013</p> * @author:游海东 * @date:2014-6-7 下午11:11:05 * @version V1.0 */public class IndexOf {/** *  * @Title:indexOfStr * @Description: * @param:@return * @return:String * @throws */public static String indexOfStr(){StringBuilder sb = new StringBuilder();String str = "水果,总数,总数|树木,总数,总数|水果,苹果,总数";String str1 = "";String[] result = str.split("\\|");for(int i=0;i<result.length;i++){if(result[i].indexOf(",总数,总数") > 0){str1 += "'" + result[i].substring(0, 2) + "'" + ",";}}str1 = "(" + str1.substring(0,str1.length()-1) + ")";sb.append("select t.fruit in");sb.append(str1);return sb.toString();}/** * @Title:main * @Description: * @param:@param args * @return: void * @throws */public static void main(String[] args) {String fruit = indexOfStr();System.out.println(fruit);}}

2、设计结果

select t.fruit in('水果','树木')

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