googlecharts错误 - 行0的行类型无效 [英] googlecharts error- Invalid row type for row 0
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问题描述
当我尝试绘制折线图时，我正在获取下面的错误信息。我不明白我在做什么错误
ReferenceError：CAE未定义
<1月16日，CAE，18]，
Nationa ... ers.jsp（第11行，第36行）
错误：第0行的行类型无效
这里是我的代码
<％@ page language =javacontentType =text / html; charset = ISO-8859-1
pageEncoding =ISO -8859-1\" ％>
<％@ page import =java.sql。*％>
<％@ page import =java.io. *％>
<！DOCTYPE html>
< html lang =en>
< head>
< script type =text / javascript>
var theData = [//开始JavaScript数据对象
<％
Class.forName（oracle.jdbc.OracleDriver）。newInstance（）;
String connectionURL =someurl;
连接连接=空;
connection = DriverManager.getConnection（connectionURL）;
PreparedStatement ps = connection.prepareStatement（SELECT TRIM（TO_CHAR（order_date，'Month'））||''|| TO_CHAR（order_date，'yy'）month，order_channel，total FROM（SELECT order_date，order_channel，COUNT（*）total FROM order_channel WHERE order_date> = TO_DATE（'01 -Jan-2016'，'dd-Mon-yyyy'）GROUP BY order_date，order_channel）ORDER BY TO_DATE（order_date），order_channel） ;
ResultSet rs = ps.executeQuery（）;
while（rs.next（））{
％>
[<％= rs.getString（1）％>，<％= rs.getString（2）％>，<％= rs.getString（3）％>]，
<％
};
//持有数据的JavaScript对象结束
％>
];
< / script>
< script type =text / javascriptsrc =https://www.google.com/jsapi>< / script>
< script type =text / javascript>
google.load（visualization，1，{packages：['corechart'，'Bar']}）;
google.setOnLoadCallback（drawChart）;
函数drawChart（）{
var data = google.visualization.arrayToDataTable（[['Month'，'OrderChannel'，'Total']]。concat（theData），false）;
var options = {
title：'National Monthly Orders'，
hAxis：{
title：'Monthdate of Orderdate'
}，
vAxis：{
title：'独立计数'
}，
图例：{position：'none'}
};
var chart = new google.visualization.LineChart（document.getElementById（'chart_div'））;
chart.draw（data，options）;
}
< / script>
< / head>
< body>
< div id =chart_divstyle =width：1000px; height：350px;>< / div>
< / body>
< / html>
解决方案
看起来像第二列应该是 type：'string'
试试这个...
[<％= rs.getString（1）％>，<％= rs.getString（2）％>，<％= rs.getString（3）％> ;]
vs。
[<％= rs.getString（1）％>，<％= rs.getString（2）％> ;，<％= rs.getString（3）％>]
I am gettting this below error when i try to draw a line graph. i dont understand where i am doing wrong ReferenceError: CAE is not defined
[ "January 16",CAE,18],
Nationa...ers.jsp (line 11, col 36) Error: Invalid row type for row 0
Here is my code
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<%@ page import="java.sql.*" %>
<%@ page import="java.io.*" %>
<!DOCTYPE html>
<html lang="en">
<head>
<script type="text/javascript">
var theData = [ // Start of JavaScript data object
<%
Class.forName("oracle.jdbc.OracleDriver").newInstance();
String connectionURL = "someurl";
Connection connection = null;
connection = DriverManager.getConnection(connectionURL);
PreparedStatement ps = connection.prepareStatement("SELECT TRIM(TO_CHAR(order_date, 'Month')) ||' '|| TO_CHAR(order_date, 'yy') month, order_channel, total FROM ( SELECT order_date, order_channel, COUNT(*) total FROM order_channel WHERE order_date >= TO_DATE('01-Jan-2016', 'dd-Mon-yyyy') GROUP BY order_date, order_channel) ORDER BY TO_DATE(order_date), order_channel");
ResultSet rs = ps.executeQuery();
while (rs.next()) {
%>
[ "<%= rs.getString(1)%>",<%= rs.getString(2)%>,<%= rs.getString(3)%>],
<%
};
// End of JavaScript object holding the data
%>
];
</script>
<script type="text/javascript" src="https://www.google.com/jsapi"></script>
<script type="text/javascript">
google.load("visualization", "1", {packages:['corechart', 'Bar']});
google.setOnLoadCallback(drawChart);
function drawChart() {
var data = google.visualization.arrayToDataTable([['Month', 'OrderChannel', 'Total']].concat(theData), false);
var options = {
title: 'National Monthly Orders',
hAxis: {
title: 'Month of Orderdate'
},
vAxis: {
title: 'Distinct count'
},
legend:{position:'none'}
};
var chart = new google.visualization.LineChart(document.getElementById('chart_div'));
chart.draw(data, options);
}
</script>
</head>
<body>
<div id="chart_div" style="width: 1000px; height: 350px;"></div>
</body>
</html>
解决方案
looks like the second column should be type: 'string'
try this...
["<%= rs.getString(1)%>", "<%= rs.getString(2)%>", <%= rs.getString(3)%>]
vs.
["<%= rs.getString(1)%>", <%= rs.getString(2)%>, <%= rs.getString(3)%>]
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