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));??