1 數(shù)據(jù)庫(kù)sql查詢(xún)的數(shù)據(jù)

2 最終echarts畫(huà)出來(lái)的圖

3 代碼如下

計(jì)算主方法方法

/*** echarts算時(shí)間軸代碼(算流量的代碼),這里的時(shí)間間隔為5秒鐘,一分鐘的流量,totalSize = 12* ebuStreamList 為EbuStream的集合, EbuStream的屬性有totalStream,time* totalSize為x軸有多少點(diǎn)* startTime 為起始時(shí)間* */private String[] getEbuStream(List<EbuStream> ebuStreamList,int totalSize,String startTime) throws ParseException{String[] totalStreamArray = new String[totalSize];String currentTime = startTime; //起始時(shí)間變量int pointer = 0; //時(shí)間指針int counter = 0 ;//計(jì)數(shù)器for(int i = 0 ; i < totalSize ; i ++){ // 遍歷開(kāi)始,為每個(gè)點(diǎn)賦值String nextTime = ChartsTimeUtil.getNextTime(currentTime, 1); //下一次時(shí)間//校驗(yàn)時(shí)間if(ebuStreamList!=null&&ebuStreamList.size()>pointer){String cpuTime = ebuStreamList.get(pointer).getTime();//得到當(dāng)前流量實(shí)體的時(shí)間/*** 假設(shè)時(shí)間為* currentTime = 2016-05-07 22:10:46* cpuTime = 2016-05-07 22:10:48* nextTime = 2016-05-07 22:10:51* 則cpuTime在currentTime和nextTime之間* 執(zhí)行if( ChartsTimeUtil.isBigger(cpuTime, currentTime) && ChartsTimeUtil.isBigger(nextTime, cpuTime) )里面的代碼* * */if( ChartsTimeUtil.isBigger(cpuTime, currentTime) && ChartsTimeUtil.isBigger(nextTime, cpuTime) ){totalStreamArray[i] = ""+ebuStreamList.get(pointer).getTotalStream()+"";pointer++;counter++;}/*** 假設(shè)時(shí)間為* cpuTime = 2016-05-07 22:10:45* currentTime = 2016-05-07 22:10:46* nextTime = 2016-05-07 22:10:51* 則cpuTime在currentTime和nextTime的左側(cè)* 執(zhí)行else if(ChartsTimeUtil.isBigger(currentTime, cpuTime))里面的代碼* * */else if(ChartsTimeUtil.isBigger(currentTime, cpuTime)){pointer++;nextTime = currentTime;i--;}/*** 假設(shè)時(shí)間為* currentTime = 2016-05-07 22:10:46* nextTime = 2016-05-07 22:10:51* cpuTime = 2016-05-07 22:10:53* 則cpuTime在currentTime和nextTime的右側(cè)* 執(zhí)行下面else里面的代碼* * */else{totalStreamArray[i] = "";counter++;}}/*** 當(dāng)ebuStreamList為空的時(shí)候執(zhí)行下面else代碼* */else{totalStreamArray[i] = "";counter++;}currentTime = nextTime; // 當(dāng)前時(shí)間往下移一個(gè)點(diǎn)}return totalStreamArray;}
ChartsTimeUtil.getNextTime方法代碼

/*** 得到下一個(gè)點(diǎn)的時(shí)間* private static Calendar calendar = Calendar.getInstance(); * private static SimpleDateFormat simpleDateFormat=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");* ChartsSnmpTimerTask.timeFrequency=1000 * 5; // 時(shí)間間隔5秒鐘* * **/public static String getNextTime(String currentTime ,int next) throws ParseException{if(currentTime==null||currentTime.replace(" ", "").equals("")) return null;calendar.setTime(simpleDateFormat.parse(currentTime));calendar.set(Calendar.SECOND , calendar.get(Calendar.SECOND) + ( ChartsSnmpTimerTask.timeFrequency / 1000 ) * next );return simpleDateFormat.format(calendar.getTime());}
ChartsTimeUtil.isBigger代碼

/** * 比較兩個(gè)日期之間的大小 * * @param d1 * @param d2 * @return 前者大于后者返回true 反之false * @throws ParseException */ public static boolean isBigger( String time1, String time2) throws ParseException { int result = time1.compareTo(time2);if(result>=0){return true;}else{return false;}}
EbuStream實(shí)體類(lèi)

package com.nufront.euht.web.ebu.model;import java.sql.Timestamp;/*** ebu流量實(shí)體* */ public class EbuStream {private String id;private int upstream;private int downstream;private int totalStream;private String time;public String getId() {return id;}public void setId(String id) {this.id = id;}public int getUpstream() {return upstream;}public void setUpstream(int upstream) {this.upstream = upstream;}public int getDownstream() {return downstream;}public void setDownstream(int downstream) {this.downstream = downstream;}public int getTotalStream() {return totalStream;}public void setTotalStream(int totalStream) {this.totalStream = totalStream;}public String getTime() {return time;}public void setTime(String time) {this.time = time;}}

總結(jié)

以上是生活随笔為你收集整理的自己写的计算时间坐标的代码的全部?jī)?nèi)容，希望文章能夠幫你解決所遇到的問(wèn)題。

如果覺(jué)得生活随笔網(wǎng)站內(nèi)容還不錯(cuò)，歡迎將生活随笔推薦給好友。