This commit is contained in:
luyuan 2021-01-08 14:57:38 +08:00
parent bb3f3ec336
commit 2ef9823b2f
Signed by: theluyuan
GPG Key ID: A7972FD973317FF3
2 changed files with 118 additions and 2 deletions

40
app.js
View File

@ -4,6 +4,46 @@ dbs = require("./bin/mongodb.js")('mongodb://localhost:27017/ceshikaoshi',"ceshi
// console.log(requter) // console.log(requter)
// import requter from "./bin/router" // import requter from "./bin/router"
const app = new Koa(); const app = new Koa();
app.use(async (ctx, next) => {
// 允许来自所有域名请求
ctx.set("Access-Control-Allow-Origin", "*");
// 这样就能只允许 http://localhost:8080 这个域名的请求了
// ctx.set("Access-Control-Allow-Origin", "http://localhost:8080");
// 设置所允许的HTTP请求方法
ctx.set("Access-Control-Allow-Methods", "OPTIONS, GET, PUT, POST, DELETE");
// 字段是必需的。它也是一个逗号分隔的字符串,表明服务器支持的所有头信息字段.
ctx.set("Access-Control-Allow-Headers", "x-requested-with, accept, origin, content-type");
// 服务器收到请求以后检查了Origin、Access-Control-Request-Method和Access-Control-Request-Headers字段以后确认允许跨源请求就可以做出回应。
// Content-Type表示具体请求中的媒体类型信息
ctx.set("Content-Type", "application/json;charset=utf-8");
// 该字段可选。它的值是一个布尔值表示是否允许发送Cookie。默认情况下Cookie不包括在CORS请求之中。
// 当设置成允许请求携带cookie时需要保证"Access-Control-Allow-Origin"是服务器有的域名,而不能是"*";
ctx.set("Access-Control-Allow-Credentials", true);
// 该字段可选,用来指定本次预检请求的有效期,单位为秒。
// 当请求方法是PUT或DELETE等特殊方法或者Content-Type字段的类型是application/json时服务器会提前发送一次请求进行验证
// 下面的的设置只本次验证的有效时间,即在该时间段内服务端可以不用进行验证
ctx.set("Access-Control-Max-Age", 300);
/*
CORS请求时XMLHttpRequest对象的getResponseHeader()方法只能拿到6个基本字段
Cache-Control
Content-Language
Content-Type
Expires
Last-Modified
Pragma
*/
// 需要获取其他字段时使用Access-Control-Expose-Headers
// getResponseHeader('myData')可以返回我们所需的值
//https://www.rails365.net/articles/cors-jin-jie-expose-headers-wu
ctx.set("Access-Control-Expose-Headers", "myData");
await next();
})
app.use(async (ctx,next)=>{ app.use(async (ctx,next)=>{
// await next(); // await next();
console.log(ctx.url) console.log(ctx.url)

View File

@ -1,7 +1,83 @@
let index = async (ctx,next)=>{ let index = async (ctx,next)=>{
ctx.body = "" ctx.body = "欢迎"
}
let addshop = async (ctx,next)=>{
// a = {
// mingcheng:"mingzi",
// fenlei: 1,
// maidian:"lalala",
// jiage:12,
// huodongjia:10,
// kucun:100,
// xiaoliang:50,
// shangjia:1,
// xiangqing:"xiangqing",
// }
// JSON.stringify(a)
// console.log(ctx.request.body)
let { mingcheng, fenlei, maidian, jiage, huodongjia, kucun, shangjia ,xiangqing } = ctx.request.body
if(mingcheng == undefined){
ctx.body = JSON.stringify({
code: 1,
msg: "名称不能为空"
})
return ;
}
if(maidian == undefined){
ctx.body = JSON.stringify({
code: 1,
msg: "卖点不能为空"
})
return ;
}
if(jiage == undefined){
ctx.body = JSON.stringify({
code: 1,
msg: "价格不能为空"
})
return ;
}
if(huodongjia == undefined){
ctx.body = JSON.stringify({
code: 1,
msg: "活动价格不能为空"
})
return ;
}
if(kucun == undefined){
ctx.body = JSON.stringify({
code: 1,
msg: "库存不能为空"
})
return ;
}
if(shangjia == undefined){
ctx.body = JSON.stringify({
code: 1,
msg: "是否上架不能为空"
})
return ;
}
if(xiangqing == undefined){
ctx.body = JSON.stringify({
code: 1,
msg: "商品详情不能为空"
})
return ;
}
ctx.body = await dbs.add("shop", ctx.request.body)
// ctx.body="添加"
}
let findshop = async (ctx, next) => {
ctx.body = await dbs.find("shop")
} }
module.exports = { module.exports = {
"GET /":index "GET /":index,
"POST /addshop": addshop,
"GET /findshop": findshop
} }