一、VUE 集成 LODOP插件打印
VUE 集成LODOP插件打印
Lodop、C-Lodop使用说明及样例
C-Lodop插件官网：功能演示 - Lodop和C-Lodop官网主站
参考文章：VUE 集成 LODOP插件打印_廷贺的博客-CSDN博客
二、winodw.print() 打印
print() 方法用于打印当前窗口的内容。调用 print() 方法会产生一个打印预览弹框，让用户可以设置打印请求。最简单的打印就是直接调用window.print()，当然用 document.querySelector('print') 也可以达到同样的效果。默认打印页面中body里的所有内容。
// 打印
var global_Html = "";
function printme() {
global_Html = document.body.innerHTML;
document.body.innerHTML = document.getElementById('primary').innerHTML;
window.print();
window.setTimeout(function() {
document.body.innerHTML = global_Html;
}, 500);
}1.简单使用
参考文章连接1：vue、js 打印 window.print（）方法_gu_eu的博客-CSDN博客_js afterprint
参考文章连接2：window.print()局部打印三种方式 - 硅谷工具人 - 博客园
参考文章连接3：vue，打印案例 window.print() 的完美实现_kaiking_g的博客-CSDN博客_// 打印类属性、方法定义 /* eslint-disable */
2.本人创建组件模板使用案例
2.1 创建 print.js 文件
// 打印类属性、方法定义
/* eslint-disable */
const Print = function (dom, options) {
options = options || {}
if (!(this instanceof Print)) return new Print(dom, options);
this.conf = {
isAllStyle:false, // 是否加载当前页面所有样式
styleStr:'', // 设置样式字符串
setDomHeightArr: [], // 需要动态获取并设置高度的 元素
echartDomArr: [], // echart dom
printBeforeFn: null, // 打印前回调
printDoneCallBack: null // 打印后回调
}
for (const key in this.conf) {
if (key && options.hasOwnProperty(key)) {
this.conf[key] = options[key]
}
}
// debugger
if ((typeof dom) === "string") {
this.dom = document.querySelector(dom);
} else {
this.dom = this.isDOM(dom) ? dom : dom.$el;
}
if (this.conf.setDomHeightArr && this.conf.setDomHeightArr.length) {
this.setDomHeight(this.conf.setDomHeightArr);
}
this.init();
};
Print.prototype = {
/**
* 初始化
*/
init: function () {
var content = this.getStyle() + this.getHtml();
this.writeIframe(content);
},
/**
* 配置属性扩展
* @param {Object} obj
* @param {Object} obj2
*/
extendOptions: function (obj, obj2) {
for (var k in obj2) {
obj[k] = obj2[k];
}
return obj;
},
/**
复制原网页所有的样式
*/
getStyle: function () {
var str = ""
if(this.conf.isAllStyle){
let styles = document.querySelectorAll('style,link');
for (var i = 0; i < styles.length; i++) {
str += styles[i].outerHTML;
}
}
str += `<style>.no-print{display:none;}${this.conf.styleStr}</style>`;
return str;
},
// 表单赋值
getHtml: function () {
var inputs = document.querySelectorAll('input');
var textareas = document.querySelectorAll('textarea');
var selects = document.querySelectorAll('select');
// debugger
for (var k = 0; k < inputs.length; k++) {
if (inputs[k].type == "checkbox" || inputs[k].type == "radio") {
if (inputs[k].checked == true) {
inputs[k].setAttribute('checked', "checked")
} else {
inputs[k].removeAttribute('checked')
}
} else if (inputs[k].type == "text") {
inputs[k].setAttribute('value', inputs[k].value)
} else {
inputs[k].setAttribute('value', inputs[k].value)
}
}
for (var k2 = 0; k2 < textareas.length; k2++) {
if (textareas[k2].type == 'textarea') {
textareas[k2].innerHTML = textareas[k2].value
}
}
for (var k3 = 0; k3 < selects.length; k3++) {
if (selects[k3].type == 'select-one') {
var child = selects[k3].children;
for (var i in child) {
if (child[i].tagName == 'OPTION') {
if (child[i].selected == true) {
child[i].setAttribute('selected', "selected")
} else {
child[i].removeAttribute('selected')
}
}
}
}
}
return this.dom.outerHTML;
},
/**
创建iframe
*/
writeIframe: function (content) {
// 方法二：
var w, doc, iframe = document.createElement('iframe'),
f = document.body.appendChild(iframe);
iframe.id = "myIframe";
iframe.setAttribute('style', 'position:absolute;width:0;height:0;top:-10px;left:-10px;');
w = f.contentWindow || f.contentDocument;
doc = f.contentDocument || f.contentWindow.document;
doc.open();
doc.write(content);
doc.close();
var _this = this
iframe.onload = function () {
// 弹出前，回调
if (_this.conf.printBeforeFn) {
_this.conf.printBeforeFn({ doc })
}
_this.drawEchartImg(doc).then(() => {
_this.toPrint(w);
setTimeout(function () {
document.body.removeChild(iframe)
// 弹出后，回调
if (_this.conf.printDoneCallBack) {
_this.conf.printDoneCallBack()
}
}, 100)
})
}
},
/**
* 项目用到echarts，需要获取图片，来打印
* @param {Object} doc iframe window
*/
drawEchartImg(doc) {
return new Promise((resolve, reject) => {
if (this.conf.echartDomArr && this.conf.echartDomArr.length > 0) {
this.conf.echartDomArr.forEach(e => {
const dom = doc.querySelector('#' + e.$el.id)
const img = new Image()
const w = dom.offsetWidth + 'px'
const H = dom.offsetHeight + 'px'
img.style.width = w
img.style.height = H
img.src = e.imgSrc
dom.innerHTML = ''
dom.appendChild(img)
})
}
resolve()
})
},
/**
打印
*/
toPrint: function (frameWindow) {
try {
setTimeout(function () {
frameWindow.focus();
try {
if (!frameWindow.document.execCommand('print', false, null)) {
frameWindow.print();
}
} catch (e) {
frameWindow.print();
}
frameWindow.close();
}, 10);
} catch (err) {
console.log('err', err);
}
},
isDOM: (typeof HTMLElement === 'object') ?
function (obj) {
return obj instanceof HTMLElement;
} :
function (obj) {
return obj && typeof obj === 'object' && obj.nodeType === 1 && typeof obj.nodeName === 'string';
},
/**
* 设置指定dom元素高度，通过获取该dom元素现有高度，并设置
* @param {Array} arr
*/
setDomHeight(arr) {
if (arr && arr.length) {
arr.forEach(name => {
const domArr = document.querySelectorAll(name);
// debugger
domArr.forEach(dom => {
dom.style.height = dom.offsetHeight + 'px';
})
})
}
}
};
const MyPlugin = {}
MyPlugin.install = function (Vue, options) {
// 4. 添加实例方法
Vue.prototype.$print = Print
};
export default MyPlugin
2.2 在 main.js 文件中引入，全局使用
import print from '@/utils/print'
Vue.use(print)2.3 创建请假组件模板 LeavePrintView.vue
<template>
<div id="print-html" ref="PrintView">
<table style="height: 358px; width: 95%; margin-left: auto; margin-right: auto;border-collapse: collapse;" border="1px" cellpadding="0" cellspacing="0" bordercolor ="#000000" bordercolordark ="#000000">
<caption style="padding: 13px 0; font-size: 22px; font-weight: inherit;">请假条</caption>
<tbody>
<tr style=" text-align: center;">
<th width="10%" style="text-align: center; vertical-align: middle;word-wrap:break-word;">申请人</th>
<td width="15%" style="text-align: center; vertical-align: middle;">{{infoForm&&infoForm.createUserName?infoForm.createUserName:''}}</td>
<th width="10%" style="text-align: center; vertical-align: middle;">所属部门</th>
<td width="15%" style="text-align: center; vertical-align: middle;">{{infoForm&&infoForm.userDeptName?infoForm.userDeptName:''}}</td>
<th width="10%" style="text-align: center; vertical-align: middle;">请假时长</th>
<td width="15%" style="text-align: center; vertical-align: middle;">{{infoForm&&infoForm.timelen?infoForm.timelen:''}} 小时</td>
<th width="10%" style="text-align: center; vertical-align: middle;">请假类型</th>
<td width="15%" style="text-align: center; vertical-align: middle;">{{infoForm&&infoForm.leaveTypeLabel?infoForm.leaveTypeLabel:''}}</td>
</tr>
<tr style="">
<th style="text-align: center; vertical-align: middle;">请假事由</th>
<td style="text-align: center; vertical-align: middle;word-wrap:break-word;" colspan="7">{{infoForm&&infoForm.content?infoForm.content:''}}</td>
</tr>
<tr >
<th style="text-align: center; vertical-align: middle;">申请时间</th>
<td style="text-align: center; vertical-align: middle;">{{infoForm&&infoForm.createTime?momentObj(infoForm.createTime).format('YYYY-MM-DD'):''}}</td>
<th style="text-align: center; vertical-align: middle;">开始时间</th>
<td style="text-align: center; vertical-align: middle;" colspan="2">{{infoForm&&infoForm.startTime?infoForm.startTime:''}}</td>
<th style="text-align: center; vertical-align: middle;">结束时间</th>
<td style="text-align: center; vertical-align: middle;" colspan="2">{{infoForm&&infoForm.endTime?infoForm.endTime:''}}</td>
</tr>
<tr >
<th style="text-align: center; vertical-align: middle;">审批</th>
<td style="text-align: center; vertical-align: middle;word-wrap:break-word;" colspan="3">
<span v-for="item in this.checkUserIds" :key="item.id">
{{item.name}}
</span>
</td>
<th style="text-align: center; vertical-align: middle;">抄送</th>
<td style="text-align: center; vertical-align: middle;word-wrap:break-word;" colspan="3">
<span v-for="item in this.copyUserIds" :key="item.id">
{{item.name}}
</span>
</td>
</tr>
<tr >
<th style="text-align: center; vertical-align: middle;">备注</th>
<td style="text-align: center; vertical-align: middle;word-wrap:break-word;" colspan="7"></td>
</tr>
</tbody>
</table>
</div>
</template>
<script>
import moment from "moment"; // 日期格式化工具
import {mapState} from "vuex";
export default {
name: 'PrintView',
props: {
//父组件传递 姓名字段
name: {
type: String,
default: ''
},
//父组件传递 部门字段
deptName: {
type: String,
default: ''
},
//父组件传递 时长字段
duration: {
type: String,
default: ''
},
//父组件传递对象参数
infoForm: {
type: Object,
default () {
return {}
}
},
},
data() {
return {
momentObj: null,
checkUserIds:null,
copyUserIds:null
}
},
created() {
this.momentObj=moment
},
watch: {},
computed: {
...mapState(['allUserlist']), // 获取用户数据
},
/**以下所有方法采用同步调用，防止打印时数据丢失**/
methods: {
/** 数据进行封装，页面进行回显 **/
async getCheckUser(checkUserId,copyUserId){
this.checkUserIds=await this.filterCheckedusers(checkUserId);
this.copyUserIds= await this.filterCheckedusers(copyUserId);
},
/* 审批人 刷选 暴力方法，没做去重直接是清空在复制*/
async filterCheckedusers(checkedIds) {
checkedIds = checkedIds ? checkedIds.split(',') : []
const checkedusers = []
if(Array.isArray(checkedIds)) {
checkedIds.forEach(item => {
checkedusers.push(this.allUserlist.filter(i => (Boolean(item) && i.id === item))[0] )
})
} else if(checkedIds) {
checkedusers.push(this.allUserlist.filter(i => i.id === checkedIds)[0])
}
return checkedusers.filter(item => item !== undefined)
},
},
}
</script>
2.4 使用组件模板
<div style="position: absolute;right: 26%; top: 3%;z-index: 100;" >
<el-button type="info" size="small" @click="printHandle">
<i class="el-icon-printer" style="font-size:60%">打印</i>
</el-button>
<!-- 打印 -->
<print-view ref="PrintView" id="PrintView" style="display: none" :infoForm="infoForm"/>
</div>
<script>
// 引用组件
import PrintView from "@/components/print/LeavePrintView";
export default {
name: 'approval-detail',
data() {
return {
infoForm: {
checkUserId:'',
copyUserId:''},
}
},
components: {PrintView },
methods: {
async printHandle(){
// 调用子组件方法-进行数据封装
await this.$refs.PrintView.getCheckUser(this.infoForm.checkUserId,this.infoForm.copyUserId)
// 调用工具类中的打印方法，进行打印
this.$print(this.$refs.PrintView.$el, {'styleStr': '#PrintView{display:block !important;}'})
},
},
}
</script>