window.print打印方法实现

vue中使用window.print打印效果

项目要求

• 打印每页有10行表格，如果接口数据没有十个显示10行

效果图

• 第一页

• 第二页

子组件

		<template>
                    <div>
                        <div class="print" :key="i" v-for="i in Len">
                            <p class="print-title">打印页面</p>
                            <div class="print-header">
                                Lorem ipsum dolor sit amet consectetur adipisicing elit. Ratione officiis quaerat dolorem nesciunt error et fugit fuga molestias quas labore autem, eligendi eum rem alias quod possimus quae voluptatum? Id?
                           </div>
                       <div class="print-layout">
                            我是来占位置的
                       </div>
        <ul class="print-table">
            <li class="first-li">
                <span>序号</span>
                <span>姓名</span>
                <span>性别</span>
                <span>年龄</span>
                <span>电话</span>
                <span>住址</span>
            </li>
            <li class="main-li" v-for="(item,index) in 10" :key="item">
                <span v-if="dataList[index+10*(i-1)]">{{item+(10*(i-1))}}</span>
                <span v-else></span>
                <span v-if="dataList[index+10*(i-1)]">{{dataList[index+10*(i-1)].name}}</span>
                <span v-else></span>
                <span v-if="dataList[index+10*(i-1)]">{{dataList[index+10*(i-1)].sex}}</span>
                <span v-else></span>
                <span v-if="dataList[index+10*(i-1)]">{{dataList[index+10*(i-1)].age}}</span>
                <span v-else></span>
                <span v-if="dataList[index+10*(i-1)]">{{dataList[index+10*(i-1)].phone}}</span>
                <span v-else></span>
                <span v-if="dataList[index+10*(i-1)]">{{dataList[index+10*(i-1)].address}}</span>
                <span v-else></span>
            </li>
        </ul>
        <div class="print-footer">
            我是底部信息
        </div>
    </div>
</div>
</template>
<script>
export default {
    props: ['itemList'],
    data() {
        return {
            dataList: []
        }
    },
    computed:{
        Len(){
            if(this.dataList.length<=0) { 
                return 1;
            }
            else{
                return Math.ceil(this.dataList.length/10.0);
            }
        }
    },
    created() {
        this.dataList = this.itemList || [];
        this.dataList=[...this.dataList];
    }
}
</script>
	<style lang="less">
                @media screen {
                    .print {
                        display: none;
                    }
                }
            @media print {
                    #app {
                        display: none;
                    }
                    .print {
                        display: block;
                    }
                }
			* {
			    margin: 0;
			    padding: 0;
			}
			ul,li {
			    list-style-type: none;
			}
			.print {
			    page-break-before:always;
			    width: 297mm;
			    height: 209mm;
			    padding: 24px 30px 0 30px;
			    box-sizing: border-box;
			    .print-title {
			        font-size: 18px;
			    }
			    .print-header {
			        height: 146px;
			        padding-top: 15px;
			        box-sizing: border-box;
			        font-size: 14px;
			    }
			    .print-layout {
			        height: 184px;
			        border: 1px solid #45484d;
			        box-sizing: border-box;
			        font-size: 14px;
			    }
			    .print-table {
			        height: 293px;
			        margin-top: 5px;
			        border: 1px solid #303339;
			        box-sizing: border-box;
			        li {
			            height: 26px;
			            border-bottom: 1px solid #dadadc;
			            box-sizing: border-box;
			            &:last-child {
			                border-bottom: none;
			            }
			            span {
			                display: inline-block;
			                width: 16%;
			                height: 26px;
			                vertical-align: top;
			                line-height: 26px;
			                text-align: center;
			                border-right: 1px solid #dadadc;
			                box-sizing: border-box;
			                color: #2b2e34;
			                font-size: 12px;
			                &:last-child {
			                    border-right: none;
			                }
			            }
			            &.first-li {
			                height: 30px;
			                background: #bdbec0 !important;
			                color: #2b2e34;
			                span {
			                    height:30px;
			                    line-height: 30px;
			                }
			            }
			            &.main-li {
			
			            }
			        }
			        
			
			    }
			    .print-footer {
			        height: 115px;
			        font-size: 14px;
			        padding-top: 10px;
			        box-sizing: border-box;
			    }
			}
	</style> 

父组件

	<template>
	   <div class="index">
	       <button @click="handleClick">点击</button>
	       <button @click="printClick">打印</button>
	       <!-- 打印页面 -->
	       <div v-if="printShow" >
	            <Print :itemList="itemAjax" ref="printDom"></Print>
	       </div>
	    </div> 
	</template>
	<script>
	import Print from '../components/print.vue';
	
	export default {
	    data() {
	        return{
                        printShow: false,
	            itemAjax: [
	                {
	                    name: '杜二',
	                    sex: '女',
	                    age: '17',
	                    phone: 112365478961,
	                    address: '浙江'
	                },
	                {
	                    name: '张三',
	                    sex: '男',
	                    age: '18',
	                    phone: 112365478966,
	                    address: '上海'
	                },
	                {
	                    name: '李四',
	                    sex: '男',
	                    age: '38',
	                    phone: 112365478968,
	                    address: '南京'
	                },
	                {
	                    name: '王麻子',
	                    sex: '男',
	                    age: '28',
	                    phone: 112365478969,
	                    address: '苏州'
	                },
	                {
	                    name: '王大',
	                    sex: '女',
	                    age: '18',
	                    phone: 112365478970,
	                    address: '杭州'
	                },
	                {
	                    name: '杜二',
	                    sex: '女',
	                    age: '17',
	                    phone: 112365478971,
	                    address: '浙江'
	                },
	                {
	                    name: '张三',
	                    sex: '男',
	                    age: '18',
	                    phone: 112365458966,
	                    address: '上海'
	                },
	                {
	                    name: '李四',
	                    sex: '男',
	                    age: '38',
	                    phone: 112365878968,
	                    address: '南京'
	                },
	                {
	                    name: '王麻子',
	                    sex: '男',
	                    age: '28',
	                    phone: 112365978969,
	                    address: '苏州'
	                },
	                {
	                    name: '王大',
	                    sex: '女',
	                    age: '18',
	                    phone: 112365108970,
	                    address: '杭州'
	                },
	                {
	                    name: '杜二',
	                    sex: '女',
	                    age: '17',
	                    phone: 112365474971,
	                    address: '浙江'
	                }
	            ]
	        }
	    },
	    methods: {
	        handleClick() {
	            alert('点击事件')
	        },
	        printClick(){
	            this.printShow = true;
                        this.$nextTick(()=>{
                                const print = this.$refs.printDom.$el;
                                document.body.appendChild(print);
                                window.print();
                                this.printShow = false;
        })
	        }
	    },
	    components: {
	        Print
	    }
	    
	}
	</script>