由于网上很难找到完整的demo，自己写了一个以后，放在这里，留着以后学习使用：
var databaseName = 'databaseName1';
var version = '23';
var request = window.indexedDB.open(databaseName, version);
console.log('request', request);
request.onerror = function (event) {
console.log('数据库打开报错');
};
var db;
request.onsuccess = function (event) {
db = request.result;
console.log('数据库打开成功');
add();
};
request.onupgradeneeded = function(event) {
db = event.target.result;
var objectStore = db.createObjectStore('person', { keyPath: 'id' });
objectStore.createIndex('name', 'name', { unique: false });
objectStore.createIndex('email', 'email', { unique: true });
};
function add() {
var request = db.transaction(['person'], 'readwrite')
.objectStore('person')
.add({ id: 1, name: '张三', age: 24, email: 'zhangsan@example.com' });
request.onsuccess = function (event) {
console.log('数据写入成功');
read();
};
request.onerror = function (event) {
console.log('数据写入失败');
}
}
function read() {
var transaction = db.transaction(['person']);
var objectStore = transaction.objectStore('person');
var request = objectStore.get(1);
request.onerror = function(event) {
console.log('事务失败');
};
request.onsuccess = function( event) {
if (request.result) {
console.log('Name: ' + request.result.name);
console.log('Age: ' + request.result.age);
console.log('Email: ' + request.result.email);
} else {
console.log('未获得数据记录');
}
};
}
