Grails域类保存空id属性；运行web应用程序时导致错误

在这个项目中，我试图保存雅虎财经URL API返回的数据。要访问的URL为“”。我试图将返回的数据保存为StockQuote.stockInfo参数中的字符串

保存StockQuote实例对象时出现以下错误：

Error 500: Internal Server Error
URI: /StockScreenerSD/stockQuote/tickerLookup
Class: org.h2.jdbc.JdbcSQLException
Message: NULL not allowed for column "STOCK_QUOTE"; SQL statement: insert into stock_quote (id, version, date_created, stock_info, ticker) values (null, ?, ?, ?, ?) [23502-164]

Around line 26 of grails-app/controllers/org/grails/finance/StockQuoteController.groovy
23://       def url = ("http://download.finance.yahoo.com/d/quotes.csv?s=" + stockQuote.ticker + "&f=xsna2t8pj1a").toURL()
24:     def url = ("http://ichart.yahoo.com/table.csv?s=" +stockQuote.ticker+ "&a=0&b=1&c=2000&d=0&e=31&f=2010&g=w&ignore=.csv").toURL()
25:     stockQuote.stockInfo = url.text.toString()
26:     stockQuote.save()(flush: true)
27:     def stockQuoteList = stockQuoteList()   
28:     render template: 'usedTickers', collection: stockQuoteList, var: 'stockData'
29: }

尝试保存操作的控制器代码如下：

package org.grails.finance


import grails.plugins.springsecurity.Secured
@Secured('IS_AUTHENTICATED_FULLY')

class StockQuoteController {
    // def scaffold = true

    def index() {
        redirect (action:'getTicker')
    }

    def getTicker() {
        def listing = stockQuoteList()
        return [stockQuoteList: listing] // this is a map. key=>value
        }

    def tickerLookup = { 
        def stockQuote = new StockQuote(ticker: params.ticker)
        def url = ("http://ichart.yahoo.com/table.csv?s=" +stockQuote.ticker+ "&a=0&b=1&c=2000&d=0&e=31&f=2010&g=w&ignore=.csv").toURL()
        stockQuote.stockInfo = url.text.toString()
        stockQuote.save()(flush: true)
        def stockQuoteList = stockQuoteList()   
        render template: 'usedTickers', collection: stockQuoteList, var: 'stockData'
    }

    private stockQuoteList() {
        StockQuote.list()
    }

---

我希望这是我最后一次编辑。证明如果你有一周很长很忙的话，周五会变得毫无成效好的，以下是设置的方式，对我来说是可行的：

//Domain class StockQuote
class StockQuote {
    String ticker
    String stockInfo

    static mapping = {
        stockInfo type: "text" //You have to set the type since the info is CLOB
    }
}

//Controller Action
def tickerLookup = {
    def stockQuote = new StockQuote(ticker: params.ticker)
    def url = ("http://ichart.yahoo.com/table.csv?s=" +stockQuote.ticker+ "&a=0&b=1&c=2000&d=0&e=31&f=2010&g=w&ignore=.csv").toURL()
    stockQuote.stockInfo = url.text.toString()
    stockQuote.save(flush: true) //Look at how flush is used in save
    def stockQuoteList = stockQuoteList()   
    render template: 'usedTickers', collection: stockQuoteList, var: 'stockData'
}

---

这对我来说是可行的，我能够将大型CLOB响应从url保存到表中。看看我的表

我用这个网页来指导我…你能展示

StockQuote

域类吗？我想我的星期五发烧已经开始了。在此之前，我想提供一个合适的答案：）我希望我能够解决你的问题，桑凯特。我想我该去印度度假了哎呀，我现在不在笔记本电脑旁。但是谢谢你的回复！我回来后会试试的…谢谢！我将您的pastebin代码插入到我的EclipseGGTS环境中的一个新grails项目中。它工作得很好。但是我自己的项目没有，尽管它有相同的代码……您（或者您曾经）在域类中有一个名为

STOCK\u QUOTE

的非空列吗？在我看来，这就是错误所说的<代码>消息：列“STOCK_QUOTE”不允许为NULL不，我根本没有这样命名我的域类…@Kelly OP会将

stockInfo

映射到表列

STOCK_QUOTE

@dmahapatro-好的，这是合理的。《行动报》有没有说我错过了什么地方？@Kelly他还没有说。把责任推到星期五P