在uni-app中使用SQLite

xcg3401232024-09-04 9:50

目录

1、引入sqlite模块

2、sqlite文件结构

3、初始化文件index.js

4、打开数据库

5、查询数据

6、可视化测试

SQLite是一个进程内的库，实现了自给自足的、无服务器的、零配置的、事务性的 SQL 数据库引擎。它是一个零配置的数据库，这意味着与其他数据库不一样，您不需要在系统中配置。

就像其他数据库，SQLite 引擎不是一个独立的进程，可以按应用程序需求进行静态或动态连接。SQLite 直接访问其存储文件。

1、引入sqlite模块

参考上一篇文章具体操作使用uni-app构建android项目-CSDN博客

后续的操作成功后，会在手机磁盘的根路径下生成transfer【数据库实例名】文件夹

里面包含transfer.db、transfer.db-shm、transfer.db-wal

其中transfer.db 可以通过navicat等工具打开

2、sqlite文件结构

在项目根路径下定义db\sqlite文件夹

除了index.js属于初始化sqlite库文件，其余文件均表示对数据库相关表的操作

以boxDetail.js文件为例

在SysBoxDetail 函数内 init 方法，需要检查数据库表是否建立。

以及在已安装的应用程序后，对应的新增字段、索引、表数据修改等升级操作

提供对于表数据查询操作的相关函数

import {sqlite} from '@/db/sqlite/index.js'
import {strUtil, dateUtils} from '@/common/util.js'

const tabName = "sys_box_detail";

/**
 * boxNo=箱号，storeroom=库房号,totalNum=已清点数量，
 * status=是否封箱 0=否1=是，isDel=是否删除0=否，1=是
 */
const fields = "id  INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL,batchId INTEGER  not null, " 
	+" boxId INTEGER,  boxNo INTEGER not null, archNo text not null, createTime text,"
	+" fileNum text not null, storeroom text"
	
// 类似于构造函数，必须定义
function BoxDetail(){
	
}


BoxDetail.prototype = {
  constructor: BoxDetail,
} 

export const SysBoxDetail = {
	init: function(){
		if(!sqlite.isOpen()){
			sqlite.openDb();
		}
		return sqlite.isTable(tabName).then((res) => {
			console.log(tabName+"是否存在：" + res)
			if(!res) {
				sqlite.createTab(tabName, fields)
			}  else {
				// 用于后续升级版本  新增 fileNum字段
				sqlite.existsField(tabName, 'fileNum').then(res => {
					if(res[0].num == 0){
						let sql = "ALTER TABLE "+tabName+" ADD COLUMN fileNum text DEFAULT 1"
						sqlite.updateBySQL(sql).then(res => {
							console.log(res)
							console.log("插入字段成功")
						})
					} 
				})
				
				// 新增 createTime字段
				sqlite.existsField(tabName, 'createTime').then(res => {
					if(res[0].num == 0){
						let sql = "ALTER TABLE "+tabName+" ADD COLUMN createTime text"
						sqlite.updateBySQL(sql).then(res => {
							console.log(res)
							console.log("插入字段成功")
						})
					} 
				})
			}
			// 新增索引
			sqlite.existsIndex(tabName, tabName + '_idx_archNo').then( (res) => {
				console.log('索引判断：',res)
				if(res[0].num == 0){
					sqlite.createIndex(tabName, tabName + '_idx_archNo', 'archNo')
					sqlite.createIndex(tabName, tabName + '_idx_boxId', 'boxId')
					sqlite.createIndex(tabName, tabName + '_idx_batchId', 'batchId')
					sqlite.createIndex(tabName, tabName + '_idx_boxNo', 'boxNo')
				}
			})
			// 移除不存在的批次数据 ,后期再有新版本可以删除该行
			this.deleteByNotExistsBatchId();
			
		})
		
	},
	insert: function(data){
		return sqlite.addTabItem(tabName, data);
	},
	count: function(queryParam){
		let sql = "select count(*) as num from " + tabName + this.where(queryParam);
		return sqlite.selectBySQL(sql);
	},
	selectAll: function(queryParam){
		let sql = "select * from " + tabName + this.where(queryParam);
		let order = " order by archNo asc ";
		return sqlite.selectBySQL(sql + order);
	},
	selectById: function(id){
		let sql = `select * from ${tabName} where id = ${id}`;
		return sqlite.selectBySQL(sql);
	},
	updateFileNumById: function(id, fileNum) {
		let sql = `update ${tabName} set fileNum = ${fileNum} where id = ${id}`;
		return sqlite.updateBySQL(sql);
	},
	deleteById: function(id){
		return sqlite.deleteInformationType(tabName, {'id': id});
	},
	deleteByBoxId: function(boxId) {
		return sqlite.deleteInformationType(tabName, {'boxId': boxId});
	},
	deleteByBatchId: function(batchId) {
		return sqlite.deleteInformationType(tabName, {'batchId': batchId});
	},
	/**
	 * 移除无效的批次数据
	 */
	deleteByNotExistsBatchId: function(){
		let sql = `delete from ${tabName} where batchId not in (select id from sys_batch )`;
		return sqlite.updateBySQL(sql);
	},
	select: function(queryParam){
		let sql = "select * from " + tabName + this.where(queryParam);
		let order = " order by boxNo, archNo asc ";
		let limit = this.limit(queryParam)
		return sqlite.selectBySQL(sql + order + limit);
	},
	/**
	 * 关联boxId 查询，显示是否封箱
	 * @param {Object} queryParam
	 */
	selectWithBox: function(queryParam){
		let sql = "select a.*,b.status from " + tabName + " as a left outer join sys_box as b on a.boxId = b.id " 
		let where = this.where(queryParam, 'a');
		let order = " order by a.boxNo, a.archNo asc ";
		let limit = this.limit(queryParam)
		
		return sqlite.selectBySQL(sql + where + order + limit);
	},
	countByBatchNo: function(batchNo){
		let sql = "select count(*) as num from " + tabName + this.where({batchNo: batchNo});
		return sqlite.selectBySQL(sql);
	},
	countByArchNoAndBatchId: function(archNo, batchId){
		let sql = "select count(*) as num from " + tabName + 
			this.where({archNo: archNo, batchId: batchId});
		return sqlite.selectBySQL(sql);
	},
	where: function(queryParam, alias){
		let where = ''
		if(strUtil.isEmpty(alias)){
			alias = ''
		} else {
			alias +='.'
		}
		if(queryParam){
			var batchId = queryParam.batchId;
			if(strUtil.isNotEmpty(batchId)){
				where += ` and ${alias}batchId = ${batchId} `;
			}
			var boxId = queryParam.boxId;
			if(strUtil.isNotEmpty(boxId)){
				where += ` and ${alias}boxId = ${boxId}`;
			}
			var archNo = queryParam.archNo;
			if(strUtil.isNotEmpty(archNo)){
				where += ` and ${alias}archNo = "${archNo}" `
			}
			var searchValue = queryParam.searchValue;
			if(strUtil.isNotEmpty(searchValue)){
				where += ` and ( ${alias}boxNo = "${searchValue}" or ${alias}storeroom = "${searchValue}" or ${alias}archNo like "%${searchValue}%" )`
			}
			
		}
		if(where.length > 0){
			where = " where 1=1 " + where;
		}
		return where;
	},
	limit: function(queryParam){
		let num = queryParam.pageNum;
		let size = queryParam.pageSize
		let numindex = 0
		if(num <= 1){
			numindex = 0
		} else {
			numindex = ((num - 1) * size)
		}
		return ` limit ${numindex},${size}`
	}
	
}

3、初始化文件index.js

// 定义数据库实例名称
let dbName = "transfer"

export const openDb = () => {
	//如果数据库存在则打开，不存在则创建。
	return new Promise((resolve, reject) => {
		plus.sqlite.openDatabase({
			name: dbName, //数据库名称
			// path: `_doc/${dbName}.db`, //数据库地址
			path: `/storage/emulated/0/transfer/${dbName}.db`,
			success(e) {
				console.log(e)
				resolve(e);
			},
			fail(e) {
				console.log(e)
				reject(e);
			}
		})
	})
}
// 查询所有数据表名
export const getTable = () => {
	return new Promise((resolve, reject) => {
		plus.sqlite.selectSql({
			name: dbName,
			sql: "select * FROM sqlite_master where type='table'",
			success(e) {
				resolve(e);
			},
			fail(e) {
				console.log(e)
				reject(e);
			}
		})
	})
}
// 查询表数据总条数
export const getCount = (tabName) => {
	return new Promise((resolve, reject) => {
		plus.sqlite.selectSql({
			name: dbName,
			sql: "select count(*) as num from " + tabName,
			success(e) {
				resolve(e);
			},
			fail(e) {
				reject(e);
			}
		})
	})
}

// 查询表是否存在
export const isTable = (tabName) => {
	return new Promise((resolve, reject) => {
		plus.sqlite.selectSql({
			name: dbName,
			sql: `select count(*) as isTable FROM sqlite_master where type='table' and name='${tabName}'`,
			success(e) {
				resolve(e[0].isTable ? true : false);
			},
			fail(e) {
				console.log(e)
				reject(e);
			}
		})
	})
}
 

// 修改数据
export const updateBySQL = (sql) => {
	console.log(sql)
	return new Promise((resolve, reject) => {
		plus.sqlite.executeSql({
			name: dbName,
			sql: sql,
			success(e) {
				console.log(e)
				resolve(e);
			},
			fail(e) {
				console.log(e)
				reject(e);
			}
		})
	})
	 
}


// 修改数据
export const updateSQL = (tabName, setData, setName, setVal) => {
	if (JSON.stringify(setData) !== '{}') {
		let dataKeys = Object.keys(setData)
		let setStr = ''
		dataKeys.forEach((item, index) => {
			console.log(setData[item])
			setStr += (
				`${item} = ${JSON.stringify(setData[item])}${dataKeys.length - 1 !== index ? "," : ""}`)
		})
		console.log(setStr)
		return new Promise((resolve, reject) => {
			plus.sqlite.executeSql({
				name: dbName,
				sql: `update ${tabName} set ${setStr} where ${setName} = "${setVal}"`,
				success(e) {
					console.log(e)
					resolve(e);
				},
				fail(e) {
					console.log(e)
					reject(e);
				}
			})
		})
	} else {
		return new Promise((resolve, reject) => {
			reject("错误")
		});
	}
}

//删除数据库数据
export const deleteInformationType = (tabName,setData) => {
	if (JSON.stringify(setData) !== '{}') {
		let dataKeys = Object.keys(setData)
		let setStr = ''
		dataKeys.forEach((item, index) => {
			console.log(setData[item])
			setStr += (
				`${item}=${JSON.stringify(setData[item])}${dataKeys.length - 1 !== index ? " and " : ""}`)
		})
		let sql = `delete from ${tabName} where ${setStr}`
		console.log(sql)
		return new Promise((resolve, reject) => {
			plus.sqlite.executeSql({
				name: dbName,
				sql: sql,
				success(e) {
					resolve(e);
				},
				fail(e) {
					reject(e);
				}
			})
		})
	} else {
		return new Promise((resolve, reject) => {
			reject("错误")
		});
	}
}

//关闭数据库
export const closeSQL = () => {
	return new Promise((resolve, reject) => {
		plus.sqlite.closeDatabase({
			name: dbName,
			success(e) {
				resolve(e);
			},
			fail(e) {
				reject(e);
			}
		})
	})
}

//监听数据库是否开启
export const isOpen = () => {
	let open = plus.sqlite.isOpenDatabase({
		name: dbName,
		path: `_doc/${dbName}.db`, 
	})
	return open;
}
// 创建表
export const createTab = (tabName, data) => {
	// tabName不能用数字作为表格名的开头
	return new Promise((resolve, reject) => {
		console.log("创建数据库表",tabName)
		plus.sqlite.executeSql({
			name: dbName,
			// sql: 'create table if not exists dataList("list" INTEGER PRIMARY KEY AUTOINCREMENT,"id" TEXT,"name" TEXT,"gender" TEXT,"avatar" TEXT)',
			sql: `create table if not exists ${tabName}(${data})`,
			success(e) {
				cosole.log("创建数据表成功")
				resolve(e);
			},
			fail(e) {
				console.log(e)
				reject(e);
			}
		})
	})
}

// 创建表
export const dropTab = (tabName) => {
	if(null == tabName || tabName.length == 0){
		return false;
	}
	// tabName不能用数字作为表格名的开头
	return new Promise((resolve, reject) => {
		plus.sqlite.executeSql({
			name: dbName,
			// sql: 'create table if not exists dataList("list" INTEGER PRIMARY KEY AUTOINCREMENT,"id" TEXT,"name" TEXT,"gender" TEXT,"avatar" TEXT)',
			sql: `DROP TABLE ${tabName}`,
			success(e) {
				cosole.log(`删除数据表成功`)
				resolve(e);
			},
			fail(e) {
				console.log(e)
				reject(e);
			}
		})
	})
}

// 添加数据
export const addTabItem = (tabName,obj) => {
	if (obj) {
		let keys = Object.keys(obj)
		let keyStr = keys.toString()
		let valStr = ''
		keys.forEach((item, index) => {
			if (keys.length - 1 == index) {
				valStr += ('"' + obj[item] + '"')
			} else {
				valStr += ('"' + obj[item] + '",')
			}
		})
		console.log(valStr)
		let sqlStr = `insert into ${tabName}(${keyStr}) values(${valStr})`
		console.log(sqlStr)
		return new Promise((resolve, reject) => {
			plus.sqlite.executeSql({
				name: dbName,
				sql: sqlStr,
				success(e) {
					resolve(e);
				},
				fail(e) {
					console.log(e)
					reject(e);
				}
			})
		})
	} else {
		return new Promise((resolve, reject) => {
			reject("错误")
		})
	}
}
// 合并数据
export const mergeSql = (tabName,tabs) => {
	if (!tabs || tabs.length == 0) {
		return new Promise((resolve, reject) => {
			reject("错误")
		})
	}
	let itemValStr = ''
	tabs.forEach((item, index) => {
		let itemKey = Object.keys(item)
		let itemVal = ''
		itemKey.forEach((key, i) => {
			if (itemKey.length - 1 == i) {
				if (typeof item[key] == 'object') {
					itemVal += (`'${JSON.stringify(item[key])}'`)
				} else {
					itemVal += (`'${item[key]}'`)
				}
			} else {
				if (typeof item[key] == 'object') {
					itemVal += (`'${JSON.stringify(item[key])}',`)
				} else {
					itemVal += (`'${item[key]}',`)
				}
			}
		})
		if (tabs.length - 1 == index) {
			itemValStr += ('(' + itemVal + ')')
		} else {
			itemValStr += ('(' + itemVal + '),')
		}
	})
	let keys = Object.keys(tabs[0])
	let keyStr = keys.toString()
	return new Promise((resolve, reject) => {
		plus.sqlite.executeSql({
			name: dbName,
			sql: `insert or ignore into ${tabName} (${keyStr}) values ${itemValStr}`,
			success(e) {
				resolve(e);
			},
			fail(e) {
				console.log(e)
				reject(e);
			}
		})
	})
}
// 获取分页数据库数据
export const getDataList = async (tabName, num, size,byName,byType) => {
	let count = 0
	let sql = ''
	let numindex = 0
	await getCount(tabName).then((resNum) => {
		count = Math.ceil(resNum[0].num / size)
	})
	if(((num - 1) * size) == 0) {
	    numindex = 0
	} else {
		numindex = ((num - 1) * size)
	}
	sql = `select * from ${tabName}`
	if(byName && byType) {
		// desc asc
		sql += ` order by ${byName} ${byType}`
	}
	sql += ` limit ${numindex},${size}`
	console.log(sql)
	if (count < num - 1) {
		return new Promise((resolve, reject) => {
			reject("无数据")
		});
	} else {
		return new Promise((resolve, reject) => {
			plus.sqlite.selectSql({
				name: dbName,
				// sql: "select * from userInfo limit 3 offset 3",
				sql:sql ,
				success(e) {
					resolve(e);
				},
				fail(e) {
					reject(e);
				}
			})
		})
	}
}

//查询数据库数据
export const selectDataList = (tabName,setData,byName,byType) => {
	let setStr = ''
	let sql = ''
	if (JSON.stringify(setData) !== '{}') {
		let dataKeys = Object.keys(setData)
		dataKeys.forEach((item, index) => {
			console.log(setData[item])
			setStr += (
				`${item}=${JSON.stringify(setData[item])}${dataKeys.length - 1 !== index ? " and " : ""}`)
		})
		sql = `select * from ${tabName} where ${setStr}`
	} else {
		sql = `select * from ${tabName}`
	}
	if(byName && byType) {
		// desc asc
		sql += ` order by ${byName} ${byType}`
	}
	console.log(sql)
	if (tabName !== undefined) {
		return new Promise((resolve, reject) => {
			plus.sqlite.selectSql({
				name: dbName,
				sql: sql,
				success(e) {
					resolve(e);
				},
				fail(e) {
					console.log(e)
					reject(e);
				}
			})
		})
	} else {
		return new Promise((resolve, reject) => {
			reject("错误")
		});
	}
}


//查询数据库数据
export const selectBySQL = (sql) => {
	console.log(sql)
	return new Promise((resolve, reject) => {
		plus.sqlite.selectSql({
			name: dbName,
			sql: sql,
			success(e) {
				console.log('success')
				resolve(e);
			},
			fail(e) {
				console.log(e)
				reject(e);
			}
		})
	})
	 
}

/**
 * 创建一般索引
 * @param tableName 表名
 * @param indexName 索引名
 * @param fieldName 字段名
 */
export const createIndex = (tableName, indexName, fieldName) => {
	let sql = `CREATE INDEX ${indexName} ON ${tableName} (${fieldName})`
	console.log('新建索引', sql)
	return new Promise((resolve, reject) => {
		plus.sqlite.executeSql({
			name: dbName,
			sql: sql,
			success(e) {
				resolve(e);
			},
			fail(e) {
				console.log(e)
				reject(e);
			}
		})
	});
}

/**
 * 判断表索引是否存在
 * @param tableName 表名
 * @param indexName 索引名
 */
export const existsIndex = (tableName, indexName) => {
	let sql = `SELECT count(*)  num FROM sqlite_master WHERE type = 'index' and name = '${indexName}' and tbl_name = '${tableName}'`
	console.log(tableName, indexName, sql)
	return new Promise((resolve, reject) => {
		plus.sqlite.selectSql({
			name: dbName,
			sql: sql,
			success(e) {
				resolve(e);
			},
			fail(e) {
				console.log(e)
				reject(e);
			}
		})
	});
}

/**
 * 判断表字段是否存在
 * @param tableName 表名
 * @param fieldName 字段名
 */
export const existsField = (tableName, fieldName) => {
	let sql = `SELECT count(*)  num FROM sqlite_master WHERE type = 'table' and name = '${fieldName}' and tbl_name = '${tableName}'`
	console.log(tableName, fieldName, sql)
	return new Promise((resolve, reject) => {
		plus.sqlite.selectSql({
			name: dbName,
			sql: sql,
			success(e) {
				resolve(e);
			},
			fail(e) {
				console.log(e)
				reject(e);
			}
		})
	});
}

 



//把这些方法导出去
export const sqlite = {
	isOpen,
	openDb,
	createTab,dropTab,
	mergeSql,
	getDataList,
	addTabItem,
	closeSQL,
	deleteInformationType,
	getTable,
	getCount,
	updateSQL,
	isTable,
	selectDataList,
	selectBySQL,updateBySQL,
	createIndex, 
	existsIndex,
	existsField,
};

4、打开数据库

在App.vue 文件的onLaunch: function() {} 函数中

sqlite 需要依赖存储权限，因此需要在成功获取权限后，初始化相关操作。

// 判断有没有存储权限
			var _this = this
			plus.android.requestPermissions(['android.permission.WRITE_EXTERNAL_STORAGE'], function(e) {
				console.log(e.deniedPresent)
				if (e.deniedAlways.length > 0) { //权限被永久拒绝
					// 弹出提示框解释为何需要读写手机储存权限，引导用户打开设置页面开启
					uni.showModal({
						title: '存储权限',
						content: '您拒绝了存储权限，请去设置-应用开启存储权限。',
						success: function (res) {
							if (res.confirm) {
								// console.log('用户点击确定');
							} else if (res.cancel) {
								// console.log('用户点击取消');
							}
						}
					});
				}
				if (e.deniedPresent.length > 0) { //权限被临时拒绝
					// 弹出提示框解释为何需要读写手机储存权限，可再次调用plus.android.requestPermissions申请权限
					plus.android.requestPermissions(['android.permission.WRITE_EXTERNAL_STORAGE'])
					// console.log('666666666 ' + e.deniedPresent.toString());
				}
				if (e.granted.length > 0) { //权限被允许
					//调用依赖获取读写手机储存权限的代码
					// _this.upload() // 获取权限成功之后调用的函数
					// console.log('2222222222 ' + e.granted.toString());
					if(!sqlite.isOpen()){
						sqlite.openDb().then((res) => {
							SysBoxDetail.init();
                            // ......
						});
					}
				}
				
				
				
			}, function(e) {
				// console.log('R12133313221' + JSON.stringify(e));
			});

5、查询数据

在sqlite表的脚本文件中，已将所有函数export

在vue中，先引入相关文件，后续可以直接使用

import {SysBoxDetail}  from '@/db/sqlite/boxDetail.js'

SysBoxDetail.selectAll(this.queryParams).then((res) => {
	console.log(res)
})

6、可视化测试

<template>
	<view class="content">
		<view class="">
			表名
		</view>
		<radio-group @change="radioChange">
			<label class="uni-list-cell uni-list-cell-pd" v-for="(item, index) in tableList" :key="index">
				<view>
					<radio :value="index" :checked="index == radioIndex" />{{item.name}}
				</view>
			</label>
		</radio-group>
		<button type="primary" @click="dbType">检查数据库打开状态</button>
		<button type="primary" @click="openDb">打开数据库</button>
		<button type="primary" @click="closeDb">关闭数据库</button>
		<input class="input_box" type="text" value="" v-model="valInp" placeholder="请输入聊天内容" />
		<button type="primary" @click="addSql">添加数据</button>
		<button type="primary" @click="setSql">修改数据</button>
		<input class="input_box" type="text" value="" v-model="valTab" placeholder="请输入表名" />
		<button type="primary" @click="addExecuteSql">添加表</button>
		<button type="primary" @click="tapMerge">合并数据</button>
		<button type="primary" @click="delSql">删除数据库数据</button>
		<button type="primary" @click="getTab">查询所有数据表名</button>
		<button type="primary" @click="tapIsTab">查询表是否存在</button>
		<button type="primary" @click="getNum">获取表数据总条数</button>
		<button type="primary" @click="getSql">获取数据库数据</button>
		<button type="primary" @click="getBranch">获取分页数据库数据+排序</button>
		<t-table class="table_box" :chatTableListLength="chatTableListLength" :chatTableList="chatTableList">
		</t-table>
	</view>
</template>

<script>
	import {
		*
	} from '@/db/sqlite/index.js'
	export default {
		components: {
			tTable
		},
		data() {
			return {
				valTab:'',
				radioIndex:0,
				valInp: '',
				chatTableList: [],
				tableList:[],
				chatTableListLength: 0,
				tableName:''
			}
		},
		async onLoad() {
			await this.openDb()
			await this.getTab()
		},
		methods: {
			radioChange(val) {
				this.tableName = this.tableList[val.detail.value].name
				console.log(this.tableList)
			},
			tapMerge() {
				let tabs = [{
					"local_id": "3_wtsu83kox2",
					"id": "3_wtsu83koxx",
					"chat_friend_id": "兔兔",
					"content": 2
				}, {
					"local_id": "3_hq5uyx9vrd",
					"id": "3_hq5uyx9vrd",
					"chat_friend_id": "兔兔",
					"content": 2
				}]
				// 只会插入不重复的
				mergeSql('pop', this.tableName, tabs).then((res) => {
					console.log(res)
				})
			},
			tapIsTab() {
				isTable('pop', this.tableName).then((res) => {
					console.log(res)
				})
			},
			getTab() {
				getTable('pop').then((res) => {
					console.log(res)
					this.tableList = res
				})
			},
			addExecuteSql() {
				console.log(this.valTab)
				if(!this.valTab || this.valTab == '') return
				addTab('pop', this.valTab).then(res => {
					console.log(res)
					this.valTab = ''
					this.getTab()
				})
			},
			delSql() {
				deleteInformationType('pop', this.tableName, {
					"chat_i": 2,
				}).then(res => {
					console.log(res)
				})
			},
			dbType() {
				uni.showToast({
					icon: "none",
					title: isOpen('pop') ? '数据库已打开' : '数据库已关闭'
				})
			},
			closeDb() {
				closeSQL().then(res => {
					console.log(res)

				})
			},
			openDb() {
				if (isOpen('pop')) return
				openDb('pop').then(res => {
					console.log(res)
				})
			},
			setSql() {
				updateSQL('pop', this.tableName, {
					chat_friend_id: 'Texas3333666',
					content: '3333666'
				}, 'local_id', '3_bpu8sufahoe').then(res => {
					console.log('1111')
				})
			},
			addSql() {
				console.log(this.valInp)
				console.log(this.tableName)
				let _this = this
				if (this.valInp == '') {
					uni.showToast({
						icon: "none",
						title: "请输入聊天内容"
					})
					return
				}
				let objMsg = {}
				let local_id = 3 + '_' + this.getLocalId()
				let content = {}
				content.voiceTime = 0
				content.url = ''
				content.tempFilePath = ''
				content.text = this.valInp
				objMsg.id = local_id
				objMsg.chat_friend_id = 3
				objMsg.user_id = 1
				objMsg.local_id = local_id
				objMsg.is_read = 0
				objMsg.status = 0
				objMsg.send_time = parseInt(new Date().getTime() / 1000)
				objMsg.msg_type = 1
				objMsg.content = JSON.stringify(content)
				addTabItem('pop', _this.tableName, {
					id: objMsg.id,
					local_id: objMsg.id,
					content: '2',
					chat_friend_id: _this.valInp,
				}).then((res) => {
					_this.valInp = ''
					console.log(_this.valInp)
				})
			},
			// 获取本地id
			getLocalId() {
				return Math.random().toString(36).slice(2)
			},
			getSql() {
				selectDataList('pop', this.tableName,{}).then(res => {
					console.log(res)
					this.chatTableList = res
				})
			},
			getBranch() {
				getDataList('pop', this.tableName, 1, 20, 'chat_i', 'desc').then(res => {
					console.log(res)
					this.chatTableList = res
				}).catch(err => {
					console.log(err)
				})
			},
			getNum() {
				getCount('pop', this.tableName).then(res => {
					this.chatTableListLength = res[0].num
				})
			}
		}
	}
</script>

<style>
	.content button {
		margin-bottom: 20rpx;
	}

	.input_box {
		width: 690rpx;
		height: 80rpx;
		font-size: 40rpx;
		line-height: 40rpx;
		margin: 10rpx auto;
		background-color: pink;
	}

	.table_box {
		width: 690rpx;
		margin: 10rpx auto;
		text-align: center;
	}
</style>

参照文章

SQLite 教程 | 菜鸟教程 (runoob.com)

相关推荐
sdaxue.com2 分钟前
帝国CMS:如何去掉帝国CMS登录界面的认证码登录
数据库·github·网站·帝国cms·认证码
o(╥﹏╥)1 小时前
linux（ubuntu ）卡死怎么强制重启
linux·数据库·ubuntu·系统安全
阿里嘎多学长1 小时前
docker怎么部署高斯数据库
运维·数据库·docker·容器
Yuan_o_1 小时前
Linux 基本使用和程序部署
java·linux·运维·服务器·数据库·后端
Sunyanhui11 小时前
牛客网 SQL36查找后排序
数据库·sql·mysql
老王笔记1 小时前
MHA binlog server
数据库·mysql
lovelin+v175030409662 小时前
安全性升级：API接口在零信任架构下的安全防护策略
大数据·数据库·人工智能·爬虫·数据分析
用户48062260414152 小时前
使用uniapp开发微信小程序-框架搭建
微信小程序·uni-app
DT辰白3 小时前
基于Redis的网关鉴权方案与性能优化
数据库·redis·缓存
热门推荐
01构建高效的广告投放系统：应用架构的设计与实现02ARM学习（31）编译器对overlay方式的支持03玄机平台应急响应—webshell查杀04Cube-Studio：开源大模型全链路一站式中台05校验 GPT-4 真实性的三个经典问题：快速区分 GPT-3.5 与 GPT-4，并提供免费测试网站06Docker 夺命连环 15 问07〔AI 绘画〕Stable Diffusion 之 解决绘制多人或面部很小的人物时面部崩坏问题 篇08基于大语言模型（LLM）的合成数据生成、策展和评估的综述09(欧拉)openEuler系统添加网卡文件配置流程、(欧拉)openEuler系统手动配置ipv6地址流程、(欧拉)openEuler系统网络管理说明10【一文读懂】NTN（非地面网络）技术介绍