各种类型转化为String

来源：互联网发布：贵州省旅游数据编辑：程序博客网时间：2024/04/29 06:38
package com.cardvalue.sys.newnetwork;import java.lang.reflect.Field;import java.util.ArrayList;import java.util.HashMap;import java.util.List;import java.util.Map; /** * 转换map list中的数字格式  * @author  * */public class Convert {//将Map<String,Object> 中的数值转成字符串并去掉多余小数点 public static Map<String, Object> convertMap(Map<String,Object> param){ Map<String,Object> pm = new HashMap<String,Object>(); if (param==null) return pm; for (String key:param.keySet()){ if (param.get(key)==null) pm.put(key, ""); else if (param.get(key).getClass().getName().equals("java.lang.Integer")){ pm.put(key, subZeroAndDot(String.valueOf(param.get(key)))); } else if (param.get(key).getClass().getName().equals("java.lang.Double")){ Double tmp = (Double) param.get(key); pm.put(key, subZeroAndDot(String.valueOf(tmp))); }else{ if (isNumber(param.get(key).toString())) pm.put(key,subZeroAndDot(param.get(key).toString())); else pm.put(key,param.get(key));  } } return pm; }  public static<T> void convertMap(T cls){// Map<String,Object> pm = new HashMap<String,Object>();// if (param==null)// return pm;// for (String key:param.keySet()){// if (param.get(key)==null)// pm.put(key, "");// else if (param.get(key).getClass().getName().equals("java.lang.Integer")){// pm.put(key, subZeroAndDot(String.valueOf(param.get(key))));// }// else if (param.get(key).getClass().getName().equals("java.lang.Double")){// Double tmp = (Double) param.get(key);// pm.put(key, subZeroAndDot(String.valueOf(tmp)));// }else{// if (isNumber(param.get(key).toString()))// pm.put(key,subZeroAndDot(param.get(key).toString()));// else// pm.put(key,param.get(key)); // }// }// return pm; Field [] fields = cls.getClass().getDeclaredFields(); for (Field field:fields){ field.setAccessible(true); try {Object value = field.get(cls);String temp = convertToString(value);field.set(cls, temp);} catch (IllegalAccessException | IllegalArgumentException e) {// TODO Auto-generated catch blocke.printStackTrace();} } }  //同上 ，作用于list public static List<Map<String,Object>> convertListObject(List<Map<String,Object>> param){ List<Map<String,Object>> ret = new ArrayList<Map<String,Object>>(); for (Map<String,Object> tp :param){ ret.add(convertMap(tp)); } return ret; }     public static List<Object> convertListString(List<Object> param){ List<Object> ret = new ArrayList<Object>(); if (ret==null && ret.size()==0) return new ArrayList<Object>(); for (Object  tp :param){ ret.add(convertToString(tp)); } return ret; }  public static List<String> convertStringToListString(List<Object> param){ List<String> ret = new ArrayList<String>(); if (ret==null && ret.size()==0) return new ArrayList<String>(); for (Object  tp :param){ ret.add(convertToString(tp).toString()); } return ret; }   public static String convertToString(Object str){ if (str.getClass().getName().equals("java.lang.Integer")){return subZeroAndDot(String.valueOf(str)); } else if (str.getClass().getName().equals("java.lang.Double")){ Double tmp = (Double)str; return subZeroAndDot(String.valueOf(tmp)); }else return subZeroAndDot(str.toString()); }  public static void print(String msg){ System.out.println(msg); }  //去掉多余的0 private static String subZeroAndDot(String s){          if(s.indexOf(".") > 0){              s = s.replaceAll("0+?$", "");//去掉多余的0              s = s.replaceAll("[.]$", "");//如最后一位是.则去掉          }          return s;   } /** * 判断字符串是否是整数 */public static boolean isInteger(String value) {try {Integer.parseInt(value);return true;} catch (NumberFormatException e) {return false;}}/** * 判断字符串是否是浮点数 */public static boolean isDouble(String value) {try {Double.parseDouble(value);if (value.contains("."))return true;return false;} catch (NumberFormatException e) {return false;}}/** * 判断字符串是否是数字 */public static boolean isNumber(String value) {return isInteger(value) || isDouble(value);}  }
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