java正则表达式的匹配

// 解析规格，根据不同形式进行匹配,暂时将格式当中的前三个数字进行保存

if (StringUtils.hasText(specName))

{

Pattern pattern = Pattern.compile("[0-9]+(\\.[0-9]+)?");

Matcher match = pattern.matcher(specName);

for (int j = 0; match.find() && j <= 2; j++)

{

String value = match.group();

if (value != null && SolrStatementUtils.checkTextToNum(value))

{

double num = Double.parseDouble(value);

if (j == 0)

{

itemIndex.setThickness(NumberUtils.parseDouble(SolrStatementUtils.formatNumber(Double.parseDouble(value), SolrStatementUtils.NUMBER_PATTERN_1)));

}

if (j == 1)

{

itemIndex.setWidth(NumberUtils.parseDouble(SolrStatementUtils.formatNumber(Double.parseDouble(value), SolrStatementUtils.NUMBER_PATTERN_1)));

}

if (j == 2)

{

itemIndex.setLength(NumberUtils.parseDouble(SolrStatementUtils.formatNumber(Double.parseDouble(value), SolrStatementUtils.NUMBER_PATTERN_1)));

}

specName = specName.replace(value, SolrStatementUtils.formatDecNumber(num, "####.##"));

}

}

/**

* 中文提取

* @param str

* @author Admin

* @date 2015-7-25

*/

public static void getChinese(String str){

String regex = "[//u4E00-//u9FFF]+";//[//u4E00-//u9FFF]为汉字

Pattern pattern = Pattern.compile(regex);

Matcher matcher = pattern.matcher(str);

StringBuffer sb = new StringBuffer();

while(matcher.find()){

sb.append(matcher.group());

}

System.out.println(sb);

}