我正在尝试让服务器处理PUT请求。但无济于事。提交表单后,客户端一直收到"Cannot POST /“消息。我使用的是4.x。
请注意,如果我在路由中将"put“更改为"post”,请求就会得到很好的处理……
如何让我的服务器处理'PUT‘请求?
服务器:
var express = require("express");
var bodyParser = require("body-parser");
var methodOverride = require("method-override");
var app = express();
app.use(bodyParser());
app.use(methodOverride());
app.get("/",function(req,res){
res.render("index.ejs");
console.log("GET received.");
});
app.put("/",function(req,res){
console.log("PUT received: " + req.body.userName + " - " + req.body.password);
});
app.listen(1337);
console.log("Listening on 1337.");
客户端
<!DOCTYPE html>
<html>
<head>
<title>TODO supply a title</title>
</head>
<body>
<form action="/" method="post">
First
<input type="text" name="first">
Last
<input type="text" name="last">
<input type="hidden" name="_method" value="put">
<button type="submit">Submit</button>
</form>
</body>
</html>
发布于 2014-06-27 11:06:38
一种更简单的方法是override using a query value
var methodOverride = require('method-override')
// override with POST having ?_method=PUT
app.use(methodOverride('_method'))
使用HTML的查询覆盖的示例调用:
<form method="POST" action="/resource?_method=PUT">
<button type="submit">Put resource</button>
</form>
发布于 2014-06-04 00:14:32
从method-override v2.0.0 (release 2014-06-01)开始,中间件的默认行为不检查_method
字段的POST正文;它只检查X-HTTP-Method-Override
头。
为了让方法覆盖像以前的版本一样运行,您需要向methodOverride
提供一个自定义函数,这在the project page中有详细介绍
自定义逻辑
您可以使用getter
的函数实现任何类型的自定义逻辑。以下代码实现了在method-override
1中查找req.body
的逻辑:
var bodyParser =require(‘主体解析器’) var connect = require('connect') var methodOverride =require(‘方法覆盖’) app.use(bodyParser.urlencoded()) app.use(methodOverride(function(req,res){ if (req.body && typeof req.body === 'object‘&& '_method’in req.body) { //查找var编码的POST正文并将其删除var method = req.body._method delete req.body._method return method }})
发布于 2017-01-27 02:19:39
我们还可以使用一个简单的中间件来处理x-http-method-override
var router = express.Router();
/**
* Middleware that detects a HTTP method tunneled,
* inside the header of another HTTP method. Detects
* and routs to the method mentioned in the header.
*/
router.use((req,resp,next)=>{
if(req.headers['x-http-method-override']){
req.method = req.headers['x-http-method-override'];
}
next();
});
https://stackoverflow.com/questions/24019489
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