Question

我只是按照教程从NutchWiki设置Nutch。

下载Nutch 2.x src并设置所有配置。当我刚开始爬行时会出现问题。当我运行此代码时：bin/nutch inject crawl/crawldb urls我收到如下错误消息：Unrecognized arg urls 我只是按照教程中的所有步骤，创建了目录，对配置文件进行了更改等。我还有一个查询，即apache-nutch-2.x / runtime / local /中没有crawldb目录，是自动生成还是需要手动生成吗？对此问题的任何帮助将不胜感激。

Answer 1

我遇到了同样的问题。文档似乎已经过时了。这是1.x。

对于2.x我尝试了以下内容，它对我有用。

 def addDiamondProduct(){

    def today = new Date().clearTime()
    def todayGoldPrice = GoldRates.findAllByGoldDate(today)
    def category = Categories.get(params.category)
    def karigad = Karigads.get(params.karigad)

    Double totalDiamondAmount = params.diamondWeight.toDouble() * params.diamondRate.toDouble()
    Double totalGoldAmount = params.goldWeight.toDouble() * ( params.goldPercent.toDouble()/100 )  * todayGoldPrice.rate
    Double totalMc = params.goldWeight.toDouble() * params.mcPerGram.toDouble()
    Double totalStoneAmount = params.stoneWeight.toDouble() * params.stonePricePerCarat.toDouble()
    Double totalPurchasePrice = totalDiamondAmount.toDouble() + totalGoldAmount.toDouble() + totalStoneAmount.toDouble() + totalMc.toDouble()

    def product = new DiamondProducts(
            productCode: params.productCode,
            diamondWeight: params.diamondWeight,
            diamondRate: params.diamondRate,
            totalDiamondAmount: totalDiamondAmount.toString(),
            goldWeight: params.goldWeight,
            goldKt: params.goldPurity,
            goldPercent: params.goldPercent,
            totalGoldAmount: totalGoldAmount.toString(),
            mcGram: params.mcPerGram,
            totalMc: totalMc.toString(),
            stoneWeight: params.stoneWeight,
            stonePricePerCarat: params.stonePricePerCarat,
            totalStoneAmount: totalStoneAmount.toString(),
            totalPurchasePrice: totalPurchasePrice.toString(),
            salePrice: params.salePrice,
            remarks: params.remarks,
            description: params.description,
            itemNumber: params.itemNumber,
            karigad: karigad,
            category: category,
            status: "notSold",
            createdDate: new Date()
    )
    product.save()

    flash.message = "Product Added Successfully."
    redirect(action: 'diamondProducts')

}

希望它有所帮助。

bin / nutch注入crawl / crawldb url无法正常工作

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