字符串${id}/#{functionId}的正则替换

Dear 丶 2023-10-06 15:26 52阅读 0赞

package com.fl.test;
    
    import java.util.HashMap;
    import java.util.Map;
    import java.util.regex.Matcher;
    import java.util.regex.Pattern;
    
    import static java.util.regex.Pattern.compile;
    
    /**
     * @author: fengli.fl
     * @date: Created in 2020/11/18 14:23
     * @description:
     */
    public class TestStatement {
        
        public static void main(String[] args) {
        
            String value = "${fieldId-001}/#{function-001}(${fieldId-002},#{function-002})";
            Map<String, String> map = new HashMap<>(2);
            map.put("${fieldId-001}", "bps");
            map.put("${fieldId-002}", "dps");
            // 正则匹配 ${xx}
            final Pattern pattern = compile("\\$\\{.*?\\}");
            // 占位符可能匹配的次数
            int count = value.split("\\$\\{").length - 1;
            for (int i = 0; i < count; i++) {
        
                Matcher matcher = pattern.matcher(value);
                boolean flag = matcher.find();
                if (!flag) {
        
                    break;
                }
                String key = matcher.group(0);
                if (map.containsKey(key)) {
        
                    value = value.replace(key, map.get(key));
                }
            }
    
            String func=value;
            Map<String, String> functionMap = new HashMap<>(2);
            functionMap.put("#{function-001}", "avg");
            functionMap.put("#{function-002}", "sum");
            // 正则匹配 ${xx}
            final Pattern pattern1 = compile("\\#\\{.*?\\}");
            // 占位符可能匹配的次数
            int count1 = func.split("\\#\\{").length - 1;
            for (int i = 0; i < count1; i++) {
        
                Matcher matcher = pattern1.matcher(func);
                boolean flag = matcher.find();
                if (!flag) {
        
                    break;
                }
                String key = matcher.group(0);
                if (functionMap.containsKey(key)) {
        
                    func = func.replace(key, functionMap.get(key));
                }
            }
            System.out.println(func);
        }
    }