age:18,desc:'helloWord'})},1000)}// 根据id获取数据functiongetDataByKey(db,storeName,key){lett...
getTime(), // 必须且值唯一 name: '张三', age: 18, desc: 'helloWord' }) }, 1000) } // 根据id获取数据 function getDataByKey(db, storeName, key) { let transaction = db.transaction([storeName]) // 事务 let objectStore = transaction.objectStore(storeName) // 仓库对象 let request = ...
}//查询数据(根据关键字)functiongetDataByKey(db, storeName, keyValue) {vartransaction = db.transaction(storeName, 'readonly');varstore =transaction.objectStore(storeName);varrequest =store.get(keyValue); request.onsuccess=function(e) {varstudent =e.target.result; console.log(student.name); };...
getDataByKey: function (db, storename, key, cb) { //根据存储空间的键找到对应数据 var store = db.transaction([storename], 'readwrite').objectStore(storename); var request = store.get(key); request.onerror = function () { console.error('getDataByKey error'); }; request.onsuccess = ...
//查询数据(根据关键词keyValue)vargetDataByKey =function(db, storeName, keyValue) { let transaction= db.transaction(storeName, 'readonly') let store=transaction.objectStore(storeName) let request=store.get(keyValue) request.onsuccess=function(e) { ...
let request=store.get(keyValue) request.onsuccess=function(e) { let result=e.target.result console.log(result) } } 更新数据: //更新数据varupdateDataByKey =function(db, storeName, keyValue) { let transaction= db.transaction(storeName, 'readwrite') ...
}else{request=store.get(value) }request.onsuccess=evt=>evt.target.result?resolve(evt.target.result) :resolve(null)request.onerror=evt=>reject(evt) }); }/*** 条件查询,带分页** @param {string} keyPath 索引名称* @param {string} keyRange 索引对象* @param {number} offset 分页偏移量...
// 查询数据(根据关键词keyValue) var getDataByKey = function (db, storeName, keyValue) { let transaction = db.transaction(storeName, 'readonly') let store = transaction.objectStore(storeName) let request = store.get(keyValue) request.onsuccess = function (e) { ...
* @param {string} keyRange 索引对象 * @param {number} offset 分页偏移量 * @param {number} limit 分页页码 */ getByIndex (keyPath, keyRange, offset = 0, limit = 100) { return new Promise((resolve, reject) => { const db = this.db; ...
get-data-by-inde-cursor 在索引title上使用openKeyCursor()方法,若不传参数,同样也会遍历所有数据,result对象属性如下: key 数据库中这条对象的title属性值 primaryKey 数据库中这条对象的alt值 direction openCursor()方法传入的第二个对象,默认值为next ...