我收到express的以下错误:
Error: request entity too large at module.exports (/Users/michaeljames/Documents/Projects/Proj/mean/node_modules/express/node_modules/connect/node_modules/raw-body/index.js:16:15) at json (/Users/michaeljames/Documents/Projects/Proj/mean/node_modules/express/node_modules/connect/lib/middleware/json.js:60:5) at Object.bodyParser [as handle] (/Users/michaeljames/Documents/Projects/Proj/mean/node_modules/express/node_modules/connect/lib/middleware/bodyParser.js:53:5) at next (/Users/michaeljames/Documents/Projects/Proj/mean/node_modules/express/node_modules/connect/lib/proto.js:193:15) at Object.cookieParser [as handle] (/Users/michaeljames/Documents/Projects/Proj/mean/node_modules/express/node_modules/connect/lib/middleware/cookieParser.js:60:5) at next (/Users/michaeljames/Documents/Projects/Proj/mean/node_modules/express/node_modules/connect/lib/proto.js:193:15) at Object.logger (/Users/michaeljames/Documents/Projects/Proj/mean/node_modules/express/node_modules/connect/lib/middleware/logger.js:158:5) at next (/Users/michaeljames/Documents/Projects/Proj/mean/node_modules/express/node_modules/connect/lib/proto.js:193:15) at Object.staticMiddleware [as handle] (/Users/michaeljames/Documents/Projects/Proj/mean/node_modules/express/node_modules/connect/lib/middleware/static.js:55:61) at next (/Users/michaeljames/Documents/Projects/Proj/mean/node_modules/express/node_modules/connect/lib/proto.js:193:15) TypeError: /Users/michaeljames/Documents/Projects/Proj/mean/app/views/includes/foot.jade:31 29| script(type="text/javascript", src="/js/socketio/connect.js") 30| > 31| if (req.host='localhost') 32| //Livereload script rendered 33| script(type='text/javascript', src='http://localhost:35729/livereload.js') 34| Cannot set property 'host' of undefined at eval (eval at <anonymous> (/Users/michaeljames/Documents/Projects/Proj/mean/node_modules/jade/lib/jade.js:152:8), <anonymous>:273:15) at /Users/michaeljames/Documents/Projects/Proj/mean/node_modules/jade/lib/jade.js:153:35 at Object.exports.render (/Users/michaeljames/Documents/Projects/Proj/mean/node_modules/jade/lib/jade.js:197:10) at Object.exports.renderFile (/Users/michaeljames/Documents/Projects/Proj/mean/node_modules/jade/lib/jade.js:233:18) at View.exports.renderFile [as engine] (/Users/michaeljames/Documents/Projects/Proj/mean/node_modules/jade/lib/jade.js:218:21) at View.render (/Users/michaeljames/Documents/Projects/Proj/mean/node_modules/express/lib/view.js:76:8) at Function.app.render (/Users/michaeljames/Documents/Projects/Proj/mean/node_modules/express/lib/application.js:504:10) at ServerResponse.res.render (/Users/michaeljames/Documents/Projects/Proj/mean/node_modules/express/lib/response.js:801:7) at Object.handle (/Users/michaeljames/Documents/Projects/Proj/mean/config/express.js:82:29) at next (/Users/michaeljames/Documents/Projects/Proj/mean/node_modules/express/node_modules/connect/lib/proto.js:188:17) POST /api/0.1/people 500 618ms
我正在使用meanstack。我的express.js中有以下使用声明
//Set Request Size Limit app.use(express.limit(100000000));
在提琴手中,我可以看到content-length标头,其值为:1078702
我相信这是八位字节,这是1.0787兆字节。
我不知道为什么express不让我发布以前在另一个未使用均值堆栈项目结构的express项目中发布的json数组。
最近我遇到了相同的错误,发现的所有解决方案均无效。
经过一番挖掘,我发现设置app.use(express.bodyParser({limit: '50mb'}));确实正确设置了限制。
app.use(express.bodyParser({limit: '50mb'}));
当添加一个console.log('Limit file size: '+limit);in node_modules/express/node_modules/connect/lib/middleware/json.js:46并重新启动节点时,我在控制台中得到以下输出:
console.log('Limit file size: '+limit);
node_modules/express/node_modules/connect/lib/middleware/json.js:46
Limit file size: 1048576 connect.multipart() will be removed in connect 3.0 visit https://github.com/senchalabs/connect/wiki/Connect-3.0 for alternatives connect.limit() will be removed in connect 3.0 Limit file size: 52428800 Express server listening on port 3002
我们可以看到,首先,在加载connect模块时,限制设置为1mb(1048576字节)。然后,当我设置限制时,console.log再次调用,这次限制为52428800(50mb)。但是,我仍然得到一个413 Request entity too large。
connect
console.log
413 Request entity too large
然后我添加了内容console.log('Limit file size: '+limit);, node_modules/express/node_modules/connect/node_modules/raw- body/index.js:10并在调用带有大请求的路由时在控制台中看到了另一行(在错误输出之前):
node_modules/express/node_modules/connect/node_modules/raw- body/index.js:10
Limit file size: 1048576
这意味着在某种程度上,它会connect重置limit参数,而忽略我们指定的内容。我尝试bodyParser在路由定义中分别指定参数,但也没有运气。
bodyParser
虽然我没有找到任何永久设置它的正确方法,但是您可以直接在模块中“ 修补 ”它。如果您使用的是Express 3.4.4,请在第46行添加node_modules/express/node_modules/connect/lib/middleware/json.js:
node_modules/express/node_modules/connect/lib/middleware/json.js
limit = 52428800; // for 50mb, this corresponds to the size in bytes
如果您未运行相同版本的Express,则行号可能会有所不同。请注意,这是一种 不好的做法 ,如果您更新模块,它将被 覆盖 。
因此,此临时解决方案暂时可以使用,但是一旦找到解决方案(或修复了模块,以防出现模块问题),则应相应地更新代码。
我已经在他们的GitHub上发布了一个有关此问题的问题。
[编辑-找到解决方案]
经过一些研究和测试,我发现在调试时,我添加了app.use(express.bodyParser({limit: '50mb'}));,但 在之后app.use(express.json());。Express会将全局限制设置为1mb,因为他在运行脚本时遇到的第一个解析器是express.json()。移动bodyParser它上面的伎俩。
app.use(express.json());
express.json()
也就是说,该bodyParser()方法将在Connect 3.0中弃用,并且不应该使用。相反,您应该显式声明解析器,如下所示:
bodyParser()
app.use(express.json({limit: '50mb'})); app.use(express.urlencoded({limit: '50mb'}));
[第二次编辑]
请注意,在Express 4中,必须使用body-parser模块而不是express.json()and express.urlencoded(),并使用其and 方法,如下所示:json()``urlencoded()
express.urlencoded()
json()``urlencoded()
var bodyParser = require('body-parser'); app.use(bodyParser.json({limit: '50mb'})); app.use(bodyParser.urlencoded({limit: '50mb', extended: true}));
如果extended未为明确定义该选项bodyParser.urlencoded(),则会抛出警告(body-parser deprecated undefined extended: provide extended option)。这是因为此选项在下一版本中将是必需的,并且 不再 是可选的。有关更多信息extended选项,可以参考自述的body-parser。
extended
bodyParser.urlencoded()
body-parser deprecated undefined extended: provide extended option
body-parser
[第三编辑]
似乎从Express v4.16.0起,我们可以回到执行此操作的初始方法):