92 lines
2.8 KiB
TypeScript
92 lines
2.8 KiB
TypeScript
import * as localForage from 'localforage';
|
||
|
||
export interface IRequestCache {
|
||
url: string; // 匹配 url，必填
|
||
retry?: number; // 错误重试次数，非必填，默认为 0
|
||
method?: 'get' | 'post' | 'put' | 'delete'; // 接口请求方法，默认为 'get'
|
||
maxAge?: number; // 接口存储保留时间，默认为无限制
|
||
maxRows?: number; // 接口存储规格上限配置，默认 10 条
|
||
timeout?: number; // 前端判断接口超时时间，非必填，默认为无限制
|
||
degradedTime?: number; // 接口熔断时间，非必填，默认为30秒
|
||
withHeaders?: string[]; // 需要识别的 header，非必填，默认为空
|
||
ignoreUrlParams?: string[]; // 需要忽略的 url 参数，非必填，默认为空，即会保存携带不同参数的所有url
|
||
withBodys?: string[]; // 区分请求体不同的请求
|
||
excludeStatusCode?: number[]; // 忽略的http状态码
|
||
}
|
||
|
||
export class StorageService {
|
||
instanceName = '';
|
||
instanceMap:any = {};
|
||
requestCacheList: IRequestCache[] = [];
|
||
SINGLE_SIZE_LIMIT = 1024 * 1024; //单条数据大小限制1M
|
||
TOTAL_NUMBER_LIMIT = 200; //单数据库实例存储条数不超过200
|
||
|
||
setRequestCacheList(requestCacheList: IRequestCache[]) {
|
||
this.requestCacheList = requestCacheList;
|
||
}
|
||
|
||
getRequestCacheList() {
|
||
return this.requestCacheList;
|
||
}
|
||
|
||
|
||
setInstanceName(name: string) {
|
||
this.instanceName = name;
|
||
}
|
||
|
||
getInstance(name: string) {
|
||
if (!this.instanceMap[name]) {
|
||
this.instanceMap[name] = localForage.createInstance({
|
||
name: `GitcodeDB_${name}`,
|
||
storeName: `GitcodeStore_${name}`,
|
||
});
|
||
}
|
||
return this.instanceMap[name];
|
||
}
|
||
setItem(key: string, value: any, instanceName = this.instanceName) {
|
||
const store = this.getInstance(instanceName);
|
||
this.chkAndCtlIntSize(store);
|
||
store.setItem(key, value);
|
||
}
|
||
|
||
getItem(key: string, instanceName = this.instanceName) {
|
||
const store = this.getInstance(instanceName);
|
||
return store.getItem(key);
|
||
}
|
||
|
||
removeItem(key: string, instanceName = this.instanceName) {
|
||
const store = this.getInstance(instanceName);
|
||
store.removeItem(key);
|
||
}
|
||
|
||
// 控制数据库总条数，超过后删除最早的一条
|
||
chkAndCtlIntSize(store: any, size = this.TOTAL_NUMBER_LIMIT) {
|
||
store.keys().then((keys: any) => {
|
||
const len = keys.length;
|
||
if (len > size) {
|
||
store.removeItem(keys[0]);
|
||
}
|
||
});
|
||
}
|
||
|
||
// 获取字符串占用存储大小
|
||
sizeOf(str: any) {
|
||
let total = 0;
|
||
let charCode;
|
||
str.split('').forEach((element: any, index: any) => {
|
||
charCode = str.charCodeAt(index);
|
||
if (charCode <= 0x007f) {
|
||
total += 1;
|
||
} else if (charCode <= 0x07ff) {
|
||
total += 2;
|
||
} else if (charCode <= 0xffff) {
|
||
total += 3;
|
||
} else {
|
||
total += 4;
|
||
}
|
||
});
|
||
return total;
|
||
}
|
||
}
|
||
|
||
export const storageService = new StorageService(); |