一.接收get请求
情况一:参数是url的一部分:
1 eg:router.get('/nodeServer/dataSet/page/:name/:pageNum/:pageSize', function(request, resopnse){ 2 // 获取参数name , pageNum, pageisze 3 let name = request.params.name; 5 let pageNum = request.params.pageNum; 7 let pageisze = request.params.pageisze; 8 });
情况二:参数以url?param=value的形式传递:
1 eg:router.get('/nodeServer/dataSet/page?name=name1&pageNum=3&pageSize=10', function(request, resopnse){ 2 // 获取参数name , pageNum, pageisze 3 let name = request.query.name; 5 let pageNum = request.query.pageNum; 7 let pageisze = request.query.pageisze; 8 });
总结:request.params 与 requset.query的 区别:
req.params包含路由参数(在URL的路径部分),而req.query包含URL的查询参数(在URL的?后的参数)
二.接收post请求
ajax的Content-type属性决定的post请求参数传递方式:
情况一:前端参数以Request Payload形式传递,参数需要拼接成url字符串
此时Content-type=text/plain;charset=UTF-8,ajax请求方式有:axios.post, 原生ajax的post
1 eg:router.post('/nodeServer/get/dataSet', function(request, resopnse){ 2 // 获取参数name , pageNum, pageisze 3 4 let data = ''; 5 request.on('data', function (chunk) { 6 data += chunk; 8 }); 9 request.on('end', function () { 10 let params = JSON.parse(data); 11 let name = params.name; 13 let pageNum = params.pageNum; 15 let pageSize = paramas.pageSize; 17 });
情况二: 前端参数以Form Data 形式传递
此时Content-type=application/x-www-form-urlencoded,ajax请求方式有:$post,
此时Content-type=application/json,ajax请求方式有:$ajax, 原生form表单
1 eg:router.post('/nodeServer/get/dataSet', function(request, resopnse){ 2 // 获取参数name , pageNum, pageisze 3 let params = request.body; 5 let name = params.name; 7 let pageNum = params.pageNum; 9 let pageSize = paramas.pageSize; 11 });