string对{}和map的替换符的一段代码(描述得不好，就是把map的值替换到{}里面)

import java.util.Map;public class StringFormatUtil {    private StringFormatUtil(){}    public static String substitute(String tepl, Map<String, String> params) {        String text = tepl;        for(Map.Entry<String, String> entry:params.entrySet()){            String key = entry.getKey();            text = text.replaceAll("\\{" + key + "}", safeRegexReplacement(entry.getValue()));        }        return text;    }    private static String safeRegexReplacement(String replacement) {        if (replacement == null) {            return replacement;        }        return replacement.replaceAll("\\\\", "\\\\\\\\").replaceAll("\\$", "\\\\\\$");    }}

?使用方法：

static String sqlTemplete = "insert into tree_node (TREE_NODE_ID, OBJECT_ID, TREE_NODE_NM, TREE_NODE_POSITION, TREE_NODE_TYPE_CODE, UPPER_TREE_NODE_ID) values('{nodeId}','0','{nodeNm}','0','8','{upperNodeId}');";Map<String, String> params = new HashMap<String, String>();        params.put("nodeId", String.valueOf(1));        params.put("upperNodeId", String.valueOf(2));        params.put("nodeNm", String.valueOf(3));        System.out.println(StringFormatUtil.substitute(sqlTemplete, params));

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