字符串内容替换

package com.infosec.ztpdp.policycenter.module.policycenter.scene.controller;

 

import java.text.DateFormat;

import java.util.Date;

import java.util.HashMap;

import java.util.List;

import java.util.Map;

import java.util.regex.Pattern;

 

import com.github.xiaoymin.knife4j.core.util.CollectionUtils;

import com.infosec.ztpdp.policycenter.common.sms.MailAndSmsUtils;

 

public class text {

 

/**

* 时间.

*/

private static final Pattern DATE = Pattern.compile("\\$DATE", Pattern.CASE_INSENSITIVE);

 

/**

* 下划线.

*/

private static final Pattern NEWLINE = Pattern.compile("\\$NL", Pattern.CASE_INSENSITIVE);

 

public static void main(String[] args) {

Map<String, String> map = new HashMap<String, String>(16);

map.put("IP", "1.1.1.1");

map.put("CPU", "30");

map.put("DISK", "90");

map.put("MEMORY", "70");

String returnval = "您好，您IP为[$IP]的设备,磁盘使用率已达到[$DISK%],内存使用率已达到[$MEMORY%],CPU使用率已达到[$CPU%]";

try {

MailAndSmsUtils mailUtils = new MailAndSmsUtils();

List<String> list = mailUtils.getPromptInfo();

if (!CollectionUtils.isEmpty(list)) {

for (String info : list) {

String fieldVal = "";

if (map.get(info) != null) {

fieldVal = map.get(info).toString();

}

//info:为要替换的字符 fieldVal：替换后的值

returnval = Pattern.compile(("\\$" + info), Pattern.CANON_EQ).matcher(returnval)

.replaceAll((String) fieldVal);

}

}

} catch (Exception e) {

e.printStackTrace();

}

 

String currentdate = DateFormat.getDateTimeInstance(DateFormat.SHORT, DateFormat.SHORT).format(new Date());

String newline = System.getProperty("line.separator");

returnval = DATE.matcher(returnval).replaceAll(currentdate);

returnval = NEWLINE.matcher(returnval).replaceAll(newline);

newline = null;

currentdate = null;

 

System.out.println(returnval);

}

 

}