Javascript 赫罗库说:"；内部服务器错误"；。代码中有什么错误_Javascript_Html_Node.js_Express_Ejs

Javascript 赫罗库说:"；内部服务器错误"；。代码中有什么错误

javascript html node.js express

Javascript 赫罗库说:"；内部服务器错误"；。代码中有什么错误,javascript,html,node.js,express,ejs,Javascript,Html,Node.js,Express,Ejs,赫罗库正在表演 "Internal server error" 当我点击“./保存”路线时我尝试在localhost上运行代码来检查错误，结果如下这是我的密码- index.js var express = require("express"); var bodyParser = require("body-parser"); var app = express(); app.use(bodyParser.urlencoded({extended:true})); app.use(bod

赫罗库正在表演

"Internal server error"

当我点击“./保存”路线时

我尝试在localhost上运行代码来检查错误，结果如下

这是我的密码-

index.js

var express = require("express");
var bodyParser = require("body-parser");
var app = express();

app.use(bodyParser.urlencoded({extended:true}));
app.use(bodyParser.json());

app.use('/public',express.static('public'));
app.set("view engine","ejs");

var port=process.env.PORT || 3000;

items = {}
obj1 = {
    name : "Gaurav Kumar Sharma",
    sentFrom : "Server",
    msg : "Index Page",
    time : new Date().toLocaleTimeString()
}

obj2 = {
    name : "Gaurav Sharma",
    sentFrom : "Server",
    msg : "Error 404",
    time : new Date().toLocaleTimeString()
}
var orgName = ""
var address = ""

//Items will be added here
app.get("/save",function(req,res){
    res.render("canvas",{orgName : orgName,address:address,items:items})
})

app.post("/savetodatabase",function(req,res){
    //console.log(req.body);
    obj1.msg = req.body.imgURL;
    res.redirect("/");
})

app.get("*",function(req,res){
    res.send("PAGE RENDERED!!, Go Back and save it.");
})

app.listen(port,function(){
    console.log("Server Started at port " + port);
})

<html>
<head></head>
<body>
  <script
  src="https://code.jquery.com/jquery-3.4.1.min.js"
  integrity="sha256-CSXorXvZcTkaix6Yvo6HppcZGetbYMGWSFlBw8HfCJo="
  crossorigin="anonymous"></script>
  <canvas id="myCanvas" width="640" height="840" style="border:1px solid black;"></canvas>
  <form id="getForm" action="/savetodatabase" method="POST">
    <input type="text" name="imgURL" id="imgURL">
    <button id="submit">Confirm</button>
  </form>
  <script>
    var canvas = document.getElementById("myCanvas");
    var ctx = canvas.getContext("2d");
   ....
   ....
  start = 170
  i=1
  '<%items.forEach(function(item){%>'    
    ctx.fillText(i+".",40,start)
    ctx.fillText('<%=item.name%>',110,start)
    ctx.fillText('<%=item.rate%>',370,start)
    ctx.fillText('<%=item.quantity%>',440,start)
    ctx.fillText('<%=item.amount%>',530,start) 
    i = i + 1 
    start = start + 30
  '<%})%>'
  .....
  .....
  var img = canvas.toDataURL();
  $("#imgURL").val(img);     
  </script>
</body>
</html>

Canvas.ejs

var express = require("express");
var bodyParser = require("body-parser");
var app = express();

app.use(bodyParser.urlencoded({extended:true}));
app.use(bodyParser.json());

app.use('/public',express.static('public'));
app.set("view engine","ejs");

var port=process.env.PORT || 3000;

items = {}
obj1 = {
    name : "Gaurav Kumar Sharma",
    sentFrom : "Server",
    msg : "Index Page",
    time : new Date().toLocaleTimeString()
}

obj2 = {
    name : "Gaurav Sharma",
    sentFrom : "Server",
    msg : "Error 404",
    time : new Date().toLocaleTimeString()
}
var orgName = ""
var address = ""

//Items will be added here
app.get("/save",function(req,res){
    res.render("canvas",{orgName : orgName,address:address,items:items})
})

app.post("/savetodatabase",function(req,res){
    //console.log(req.body);
    obj1.msg = req.body.imgURL;
    res.redirect("/");
})

app.get("*",function(req,res){
    res.send("PAGE RENDERED!!, Go Back and save it.");
})

app.listen(port,function(){
    console.log("Server Started at port " + port);
})

<html>
<head></head>
<body>
  <script
  src="https://code.jquery.com/jquery-3.4.1.min.js"
  integrity="sha256-CSXorXvZcTkaix6Yvo6HppcZGetbYMGWSFlBw8HfCJo="
  crossorigin="anonymous"></script>
  <canvas id="myCanvas" width="640" height="840" style="border:1px solid black;"></canvas>
  <form id="getForm" action="/savetodatabase" method="POST">
    <input type="text" name="imgURL" id="imgURL">
    <button id="submit">Confirm</button>
  </form>
  <script>
    var canvas = document.getElementById("myCanvas");
    var ctx = canvas.getContext("2d");
   ....
   ....
  start = 170
  i=1
  '<%items.forEach(function(item){%>'    
    ctx.fillText(i+".",40,start)
    ctx.fillText('<%=item.name%>',110,start)
    ctx.fillText('<%=item.rate%>',370,start)
    ctx.fillText('<%=item.quantity%>',440,start)
    ctx.fillText('<%=item.amount%>',530,start) 
    i = i + 1 
    start = start + 30
  '<%})%>'
  .....
  .....
  var img = canvas.toDataURL();
  $("#imgURL").val(img);     
  </script>
</body>
</html>

请帮助我修复错误。

项

是一个对象，而不是数组。对象没有

forEach

函数。学会只发布相关代码，你的问题就会更容易回答。没有人想读50行代码，数一数这些行，就知道错误所在的行是什么。谢谢@ChrisG，我弄错了。