1、在uni-app项目的manifest.json 将SQLite数据库模块打开

2、在项目根目录下创建common文件夹，在common文件夹下创建SQLite.js文件，如下：

// 打开数据库
async function openDB(config){
	return new Promise((callback)=>{
		plus.sqlite.openDatabase({
			...config,
			success: function(e){
				callback({code:1,msg:'打开数据库 成功!'})
			},
			fail: function(e){
				callback({code:0,msg:'打开数据库 失败: '+JSON.stringify(e)})
			}
		});
	})
}

//db是否打开
async function isOpen(config){
	return new Promise((callback)=>{
		if (plus.sqlite.isOpenDatabase(config)){
			callback({code:1,msg:'已经打开数据库。'});
		}else{
			callback({code:0,msg:'没有打开数据库！'});
		}
	});
}

// 关闭数据库
async function closeDB(config){
	return new Promise((callback)=>{
		plus.sqlite.closeDatabase({
			...config,
			success: function(e){
					console.log('closeDatabase success!');
					callback({code:1,msg:'关闭数据库成功。'});
				},
			fail: function(e){
					callback({code:0,msg:'关闭数据库失败：'+JSON.stringify(e)});
				}
		});
	});
}

// 执行SQL语句
async function executeSQL(config,sql){
	return new Promise((callback)=>{
		plus.sqlite.executeSql({
			...config,
			sql: sql,
			success: function(e){
					callback({code:1,msg:e});
				},
			fail: function(e){
					callback({code:0,msg:'执行SQL失败：'+JSON.stringify(e)});
				}
		});
	});
}

// 查询SQL语句
async function selectSQL(config,sql){
	return new Promise((callback)=>{
		plus.sqlite.selectSql({
			...config,
			sql: sql,
			success: function(data){
					callback({code:1,data:data,msg:'查询SQL成功'})
				},
			fail: function(e){
					callback({code:0,data:[],msg:'查询SQL失败: '+JSON.stringify(e)})
				}
			});
	});

}

// 执行事务(oper)begin,commit,rollback
async function transaction(config,oper){
	return new Promise((callback)=>{
		plus.sqlite.transaction({
			...config,
			operation:oper,
			success: function(e){
					callback({code:1,msg:'事务 '+oper+' 成功'});	
			},
			fail: function(e){
					callback({code:0,msg:'事务 '+oper+' 失败：'+JSON.stringify(e)});
			}
		});
	});

}

module.exports = {closeDB,openDB,isOpen,executeSQL,selectSQL,transaction};

3、在需要操作数据库的vue文件中引用,下面是示例代码

import sql2 from '@/common/SQLite.js'

// 然后就可以操作数据库了


async onclickOpenDB() {
				try {
					await sql2.openDB(this.config); // 打开数据库
					console.log('Database opened successfully');

                    //创建table 
					const createTableSQL = `CREATE TABLE IF NOT EXISTS zones (
			                id INTEGER PRIMARY KEY AUTOINCREMENT,
			                name TEXT,
			                MapNode TEXT,
			                Floor TEXT,
			                status TEXT
			            )`;

					await sql2.executeSQL(this.config, createTableSQL);
					console.log('Table created successfully');

					const countSQL = `SELECT COUNT(*) AS count FROM zones`;
					const countRes = await sql2.selectSQL(this.config, countSQL);
					const rowCount = countRes.data[0].count;
					if (rowCount === 0) {
						await this.insertData();
						console.log('Data inserted successfully');
					} else {
						console.log('Data already exists, skipping insertion');
					}

					await this.onclickSelectSQL()
				} catch (error) {
					console.error(error);
				}
			},
		
           //插入数据
			async insertData() {
				try {
					const data = this.zones;
					for (const item of data) {
						const insertSQL =
						`INSERT INTO zones (name, MapNode, Floor, status) 
			                                        VALUES ('${item.name}', '${item.MapNode}', '${item.Floor}', ${item.status})`;
						await sql2.executeSQL(this.config, insertSQL);
					}
				} catch (error) {
					console.error(error);
				}
			},

 API官方网址:https://www.html5plus.org/doc/zh_cn/sqlite.html