相信这本书很多人都看过了。 在服务器接收到一些请求，在请求处理程序中返回相应的数据时，为什么这些数据用了UTF-8转码了还是乱码呢？
这是服务器的代码： var http = require(“http”); var url = require(“url”);
function start(route, handle) { function onRequest(request, response) { var postData = “”; var pathname = url.parse(request.url).pathname; console.log(“Request for " + pathname + " received.”);
request.setEncoding(“utf8”);
request.addListener(“data”, function(postDataChunk) { postData += postDataChunk; console.log(“Received POST data chunk '”+ postDataChunk + “’.”); });
request.addListener(“end”, function() { route(handle, pathname, response, postData); });
}
http.createServer(onRequest).listen(8888); console.log(“Server has started.”); }
exports.start = start;
这是路由的代码： function route(handle, pathname, response, postData) { console.log("About to route a request for " + pathname); if (typeof handle[pathname] === ‘function’) { handle[pathname](response, postData); } else { console.log("No request handler found for " + pathname); response.writeHead(404, {“Content-Type”: “text/plain”}); response.write(“404 Not found”); response.end(); } }
exports.route = route;
这是请求处理程序的代码： function start(response, postData) { console.log(“Request handler ‘start’ was called.”);
var body = ‘<html>’+ ‘<head>’+ ‘<meta http-equiv=“Content-Type” content=“text/html; '+ 'charset=UTF-8” />’+ ‘</head>’+ ‘<body>’+ ‘<form action="/upload" method=“post”>’+ ‘<textarea name=“text” rows=“20” cols=“60”></textarea>’+ ‘<input type=“submit” value=“Submit text” />’+ ‘</form>’+ ‘</body>’+ ‘</html>’;
response.writeHead(200, {“Content-Type”: “text/html”}); response.write(body); response.end(); }
function upload(response, postData) { console.log(“Request handler ‘upload’ was called.”); response.writeHead(200, {“Content-Type”: “text/plain”}); response.write("You’ve sent: " + postData); response.end(); }
exports.start = start; exports.upload = upload;
求大牛帮下忙。
论坛已经有过好几个关于这个的帖子了吧，自己搜搜， Buffer 相加是 toString 之后相加，必须Buffer.concat之类的方法来处理，参见《深入浅出NodeJS》；5年老帖： 小心buffer拼接的问题