第一步：下载并安装PhantomJS
下载地址：Download PhantomJS
下载完成后解压
tar -xjvf phantomjs-2.1.1-linux-x86_64.tar.bz2
将可执行文件放入系统路径,并进行连接(必须是全路径)
sudo ln -s home/software/phantomjs-2.1.1-linux-x86_64/bin/phantomjs /usr/bin/phantomjs
授权
chmod 777 phantomjs
测试Phantomjs
第二步：准备生成图片相关的脚本
1. echarts.min.js
下载地址：https://echarts.baidu.com/download.html
下载最新的 release 版本，解压出来的文件夹里的 dist 目录里可以找到最新版本的 echarts 库。
2. jquery-3.2.1.min.js
我用了3.2.1这个版本，具体版本没有限制。
3. echarts-convert.js
(function () {
var system = require('system');
var fs = require('fs');
var config = {
// define the location of js files
JQUERY: 'jquery-3.2.1.min.js',
//ESL: 'esl.js',
ECHARTS: 'echarts.min.js',
// default container width and height
DEFAULT_WIDTH: '600',
DEFAULT_HEIGHT: '700'
}, parseParams, render, pick, usage;
usage = function () {
console.log("\nUsage: phantomjs echarts-convert.js -options options -outfile filename -width width -height height"
+ "OR"
+ "Usage: phantomjs echarts-convert.js -infile URL -outfile filename -width width -height height\n");
};
pick = function () {
var args = arguments, i, arg, length = args.length;
for (i = 0; i < length; i += 1) {
arg = args[i];
if (arg !== undefined && arg !== null && arg !== 'null' && arg != '0') {
return arg;
}
}
};
parseParams = function () {
var map = {}, i, key;
if (system.args.length < 2) {
usage();
phantom.exit();
}
for (i = 0; i < system.args.length; i += 1) {
if (system.args[i].charAt(0) === '-') {
key = system.args[i].substr(1, i.length);
if (key === 'infile') {
// get string from file
// force translate the key from infile to options.
key = 'options';
try {
map[key] = fs.read(system.args[i + 1]).replace(/^\s+/, '');
} catch (e) {
console.log('Error: cannot find file, ' + system.args[i + 1]);
phantom.exit();
}
} else {
map[key] = system.args[i + 1].replace(/^\s+/, '');
}
}
}
return map;
};
render = function (params) {
var page = require('webpage').create(), createChart;
var bodyMale = config.SVG_MALE;
page.onConsoleMessage = function (msg) {
console.log(msg);
};
page.onAlert = function (msg) {
console.log(msg);
};
createChart = function (inputOption, width, height,config) {
var counter = 0;
function decrementImgCounter() {
counter -= 1;
if (counter < 1) {
console.log(messages.imagesLoaded);
}
}
function loadScript(varStr, codeStr) {
var script = $('<script>').attr('type', 'text/javascript');
script.html('var ' + varStr + ' = ' + codeStr);
document.getElementsByTagName("head")[0].appendChild(script[0]);
if (window[varStr] !== undefined) {
console.log('Echarts.' + varStr + ' has been parsed');
}
}
function loadImages() {
var images = $('image'), i, img;
if (images.length > 0) {
counter = images.length;
for (i = 0; i < images.length; i += 1) {
img = new Image();
img.onload = img.onerror = decrementImgCounter;
img.src = images[i].getAttribute('href');
}
} else {
console.log('The images have been loaded');
}
}
// load opitons
if (inputOption != 'undefined') {
// parse the options
loadScript('options', inputOption);
// disable the animation
options.animation = false;
}
// we render the image, so we need set background to white.
$(document.body).css('backgroundColor', 'white');
var container = $("<div>").appendTo(document.body);
container.attr('id', 'container');
container.css({
width: width,
height: height
});
// render the chart
var myChart = echarts.init(container[0]);
myChart.setOption(options);
// load images
loadImages();
return myChart.getDataURL();
};
// parse the params
page.open("about:blank", function (status) {
// inject the dependency js
page.injectJs(config.ESL);
page.injectJs(config.JQUERY);
page.injectJs(config.ECHARTS);
var width = pick(params.width, config.DEFAULT_WIDTH);
var height = pick(params.height, config.DEFAULT_HEIGHT);
// create the chart
var base64 = page.evaluate(createChart, params.options, width, height,config);
fs.write("base64.txt",base64);
// define the clip-rectangle
page.clipRect = {
top: 0,
left: 0,
width: width,
height: height
};
// render the image
page.render(params.outfile);
console.log('render complete:' + params.outfile);
// exit
phantom.exit();
});
};
// get the args
var params = parseParams();
// validate the params
if (params.options === undefined || params.options.length === 0) {
console.log("ERROR: No options or infile found.");
usage();
phantom.exit();
}
// set the default out file
if (params.outfile === undefined) {
var tmpDir = fs.workingDirectory + '/tmp';
// exists tmpDir and is it writable?
if (!fs.exists(tmpDir)) {
try {
fs.makeDirectory(tmpDir);
} catch (e) {
console.log('ERROR: Cannot make tmp directory');
}
}
params.outfile = tmpDir + "/" + new Date().getTime() + ".png";
}
// render the image
render(params);
}());注意:三个脚本放一起
第三步：后端代码编写
1.安装EChart 依赖
<dependency>
<groupId>com.github.abel533</groupId>
<artifactId>ECharts</artifactId>
<version>2.2.7</version>
</dependency>2.用echarts提供的sdk拼接生成options,并保存json文件到服务器,然后使用Java传cmd命令调用 PhantomJS + EchartsConvert 命令读取json,生成 echarts 图片
private InputStream createChart() {
//choList 为List<choList>
//生成饼图图片
InputStream pieInputStream = this.createChart(choList,"pie");
//生成柱状图
InputStream histogramInputStream = this.createChart(choList,"histogram");
// 发邮件
String title = "测试邮件" + DateUtils.getDate();
String from= "ceshifajianren@163.com";
String user= "ceshifajianren@163.com";
String emailPassword= "******";
String fromCNname = "测试管理系统";
String content = "测试邮件!"
String[] addrs = {"ceshi@163.com"};
try {
SendMail.sendMailImage(from, fromCNname, user, emailPassword, content, title, addrs, "", pieInputStream, histogramInputStream);
} catch (Exception e) {
log.error("发送邮件失败--->" + e.getMessage());
}
}//生成图片
private InputStream createChart(List<choList> choList,String fileType) {
String phantomjs = "/home/phantomjs/phantomjs/bin/phantomjs";
String JSpath = "/home/phantomjs/echartsconvert/convert.js";
String path = "/home/echartspath/";
String dateTime = DateUtils.dateTime();
String jsonfile = dateTime + fileType + ".json";
String imagefile = dateTime + fileType + ".png";
String option = "";
InputStream fileInputStream = null;
try {
//生成option
if("pie".equals(fileType)) {
option = createPieChartOption(choList);
}else {
option = createHistogramOption(choList);
}
FtpUtil ftpshell = new FtpUtil("121.1.1.1",22,"ccc","ccc***");
// option上传
ftpshell.connect();
ftpshell.writeContent(option, echartsPath, jsonfile);
System.out.println("创建option");
// 生成图片
ftpshell.sshconnect();
String cmd = phantomjsPath + " " + echartsconvertPath + " -infile " + echartsPath + jsonfile + " -outfile " + echartsPath + imagefile;
System.out.println(cmd);
ftpshell.execShell(cmd);
//读取图片
fileInputStream = ftpshell.getsftp(echartsPath + imagefile);
ftpshell.disConnect();
} catch (Exception e) {
log.error("生成图片,读取图片失败--->" + e.getMessage());
}
return fileInputStream;
}//生成饼图
private String createPieChartOption(List<choList> choList) {
List<Map<String, Object>> list = new ArrayList<>();
for (choListch : choList) {
Map<String, Object> map = new HashMap<>();
map.put("name", ch.getProcorr());
map.put("value", ch.getStatis());
list.add(map);
}
//创建Option
Option option = new GsonOption();
option.title(new Title().text("占比").x("middle"));
option.tooltip(Trigger.item);
option.legend(new Legend().orient(Orient.vertical).left("left"));
//饼图数据
Pie pie = new Pie("占比");
//循环数据
for (Map<String, Object> objectMap : list) {
//饼图数据
pie.data(new PieData(objectMap.get("name").toString() + " " + objectMap.get("value"), objectMap.get("value")));
}
//设置数据
option.series(pie);
String optionStr = option.toString().replace(" ", "");
return optionStr;
}//生成柱状图
private String createHistogramOption(List<choList> choList) {
String[] colors = { "#546fc6", "#91cb74",
"#fac859", "#ee6666", "#73c0de",
"#3ba372", "#fb8351", "#9a60b4"};
List<Map<String, Object>> list = new ArrayList<>();
for (choListch : choList) {
Map<String, Object> map = new HashMap<>();
map.put("name", ch.getProcorr()); //人名
map.put("value", ch.getStatis()); //数量
map.put("itemStyle",
new ItemStyle().normal(new Normal().color(colors[new Random().nextInt(8)])));
list.add(map);
}
//创建Option
Option option = new GsonOption();
option.title(new Title().text("统计").x("middle"));
option.tooltip(Trigger.item);
option.legend(new Legend().orient(Orient.vertical).left("left"));//设置布局方式
//设置x轴数据
CategoryAxis categoryAxis = new CategoryAxis();
for (Changeorder ch : choList) {
categoryAxis.data(ch.getProcorr());
}
option.xAxis(categoryAxis);
//设置y轴 这里不给指定数据 自动调整
ValueAxis valueAxis = new ValueAxis();
option.yAxis(valueAxis);
//填充柱状图数据
Bar bar = new Bar("统计");
//循环数据
for (Map<String, Object> objectMap : list) {
bar.data(objectMap);
}
//设置顶端显示数值
bar.setLabel(new ItemStyle().normal(new Normal().show(true).position(Position.top)));
//设置数据
option.series(bar);
String optionStr = option.toString().replace(" ", "");
return optionStr;
}3. 发送邮件
public static boolean sendMailImage(String from, String fromCNname,String user, String password, String text, String title, String[] addrs, String recipient, InputStream pieImageInputStream, InputStream histogramImageInputStream) throws Exception {
// 1.创建参数配置, 用于连接邮件服务器的参数配置
Security.addProvider(new com.sun.net.ssl.internal.ssl.Provider());
final String SSL_FACTORY = "javax.net.ssl.SSLSocketFactory";
Properties props = System.getProperties();
props.setProperty("mail.smtp.host", mailHost);
props.setProperty("mail.smtp.socketFactory.class", SSL_FACTORY);
props.setProperty("mail.smtp.socketFactory.fallback", "false");
props.setProperty("mail.smtp.port", "465");
props.setProperty("mail.smtp.socketFactory.port", "465");
props.put("mail.smtp.auth", "true");
// 2. 根据配置创建会话对象, 用于和邮件服务器交互,不要用defaultInstance!!!!!!
Session session = Session.getInstance(props, new Authenticator() {
@Override
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(user, password);
}
});
session.setDebug(true); // 设置为debug模式, 可以查看详细的发送 log
// -- Create a new message -- 1. 创建一封邮件
Message msg = new MimeMessage(session);
// -- Set the FROM and TO fields --
String nick = javax.mail.internet.MimeUtility.encodeText(fromCNname); //设置发件人中文名称 ***<213321@163.com>
msg.setFrom(new InternetAddress(nick+" <"+from+">"));
// msg.setFrom(new InternetAddress(from));
InternetAddress[] toAddrs = new InternetAddress[addrs.length];
if (StringUtils.isNotBlank(recipient)) {
InternetAddress reciAddr = new InternetAddress(recipient); //抄送
msg.setRecipient(Message.RecipientType.CC, reciAddr);
}
for (int i = 0; i < toAddrs.length; i++) {
toAddrs[i] = new InternetAddress(addrs[i]);
}
msg.setRecipients(Message.RecipientType.TO, toAddrs);
msg.setSubject(title);
//创建富文本对象
BodyPart mdp = new MimeBodyPart();//新建一个存放信件内容的BodyPart对象
mdp.setContent(text, "text/html;charset=utf-8");//给BodyPart对象设置内容和格式/编码方式
MimeMultipart mm = new MimeMultipart();//新建一个多功能邮件块对象用来存放BodyPart对象
mm.addBodyPart(mdp);//将BodyPart加入到MimeMultipart对象中(可以加入多个BodyPart)
mm.addBodyPart(createImageMimeBodyPart(pieImage)); //将图片插入MimeMultipart对象中
mm.addBodyPart(createImageMimeBodyPart(histogramImage)); //将图片插入MimeMultipart对象中
/**
* mixed：混合关系，一般正文和附件组合使用mixed，如果不设置，javamail默认会使用mixed
* related：关联关系，一般html引用了图片这类内嵌资源，正文和图片组合使用related
* alternative：同时存在纯文本与超文本，使用boundary分割
*/
mm.setSubType("related");
//将封装好的数据保存到Message中
msg.setContent(mm);
msg.setSentDate(new Date());
// Transport.send(msg);
System.out.println("Message sent.");
return true;
}
// 封装图片MimeBodyPart
private static MimeBodyPart createImageMimeBodyPart(InputStream imageInputStream) throws Exception {
MimeBodyPart image = new MimeBodyPart();
image.setDataHandler(new DataHandler(new ByteArrayDataSource(imageInputStream, "application/octet-stream"))); //javamail jaf
image.setContentID(IdUtils.fastSimpleUUID());//设置对应资源文件的唯一标识符，即MIME协议对于邮件得结构组织格式中得content-id头字段
return image;
}(使用-options不能生成图片,只能使用-infile,指定json文件全目录,原因未知)
本文章为转载内容，我们尊重原作者对文章享有的著作权。如有内容错误或侵权问题，欢迎原作者联系我们进行内容更正或删除文章。
