Groovy的印刷地圖<字符串，列表<地圖<String，字符串>>>數據

Question

我Map<String,List<Map<String,String>>> invoices如下

invLineItems = [INV-Error_Test1:[[LINE:1, INVOICE_DATE:20150301, INVOICE_NUMBER:INV-Error_Test1, INVOICE_TOTAL:22], [LINE:2, INVOICE_DATE:20150301, INVOICE_NUMBER:INV-Error_Test1, INVOICE_TOTAL:24]], 
      INV-Error_Test2:[[LINE:3, INVOICE_DATE:20150301, INVOICE_NUMBER:INV-Error_Test2, INVOICE_TOTAL:26], [LINE:4, INVOICE_DATE:20150301, INVOICE_NUMBER:INV-Error_Test2, INVOICE_TOTAL:28,]]] 

我想打印出來，如下

println " INV-Error_Test2 Details " 
invLineItems.get('INV-Error_Test2').each{ 
    it.each{ 
print "LINE = "+ it['LINE'] 
    } 
} 

而且我得到以下錯誤groovy.lang.MissingPropertyException: No such property: LINE for class: java.util.LinkedHashMap$Entry

有人可以幫我打印這些數據嗎？

注：我其實有共24頭，但進行簡單的我剛剛發佈了4頭的問題（Line, Invoice_Date,Invoice-Number,Invoice_Total），我試圖只打印幾個頭出來24

更新時間：上午試圖更新Map<String,List<Map<String,String>>> invoices與invoiceErrors如下

InvoiceError // is an entity with below attributes 
{ String errorMessage, 
    String invoiceNumber  
} 
ErrorMessage           invoiceNumber 
-------------          -------------------  
File Error : The file is in an unsupported format INV-Error_Test1 
Line : 1 Invoice does not foot Reported    INV-Error_Test1 
Line : 2 MATH ERROR         INV-Error_Test1 
Line : 3 MATH ERROR         INV-Error_Test2 
Line : 3 Invoice does not foot Reported    INV-Error_Test2 

想實現如下圖 如果錯誤消息可是沒有行號就需要在頂層被追加爲invLineItems.put('error',['INV-Error_Test1' :文件錯誤：該文件是不支持的格式]) 否則errormessage的應附加到匹配的發票和行號如下

invLineItems = [INV-Error_Test1:[[LINE:1, INVOICE_DATE:20150301, INVOICE_NUMBER:INV-Error_Test1, INVOICE_TOTAL:22, error : `Line : 1 Invoice does not foot Reported`], 
           [LINE:2, INVOICE_DATE:20150301, INVOICE_NUMBER:INV-Error_Test1, INVOICE_TOTAL:24, error : `Line : 2 MATH ERROR`], 
       INV-Error_Test2:[[LINE:3, INVOICE_DATE:20150301, INVOICE_NUMBER:INV-Error_Test2, INVOICE_TOTAL:26, , error : `Line : 3 MATH ERROR | Line : 3 Invoice does not foot Reported`], 
           [LINE:4, INVOICE_DATE:20150301, INVOICE_NUMBER:INV-Error_Test2, INVOICE_TOTAL:28,]], 
       error : [[INV-Error_Test1:`File Error : The file is in an unsupported format`]] 

我寫的以下方法來實現上述

def regex = "^Line\\s(?:(\\d+)\\s)?\\s*:\\s+(\\d+)?.+"; 
for (e in invLineItems){ 
    def errors = lipErrors.findAll{it.invoiceNumber==e.key} // finding the error messages with the invoice number 
    errors.each{ // fetching the line numbre from error message and finding the matching record the invoice number and line number in invLineItems 
    int lineNumber 
    if (it.errorMessage.matches(regex)) { 
      Pattern p = Pattern.compile("\\d+"); 
      Matcher m = p.matcher(it.errorMessage); 
      if (m.find()) { 
       lineNumber = Integer.parseInt(m.group()); 
      } 
      println "lineNumber = "+lineNumber 
     } 

    if(e.value['LINE_ITEM_NUMBER'].find{it==lineNumber.toString()}) { 
     def data = lipErrors.findAll{it.invoiceNumber==e.key && it.errorMessage.matches("^Line\\s+"+lineNumber+"?\\:\\s+"+lineNumber+"?.+")} 
     e.getValue().each{it.put("error", data.errorMessage.join("|"))} 

    } 

    } 
} 

代碼犯規看起來像Groovy和大多采用傳統的Java代碼，我想知道代碼是否可以用Groovy方法簡化

Answer 1

只需要一次迭代。

def invLineItems = [ 
    'INV-Error_Test1': [ 
     [LINE:1, INVOICE_DATE:20150301, INVOICE_NUMBER:'INV-Error_Test1', INVOICE_TOTAL:22], 
     [LINE:2, INVOICE_DATE:20150301, INVOICE_NUMBER:'INV-Error_Test1', INVOICE_TOTAL:24] 
    ], 
    'INV-Error_Test2': [ 
     [LINE:3, INVOICE_DATE:20150301, INVOICE_NUMBER:'INV-Error_Test2', INVOICE_TOTAL:26], 
     [LINE:4, INVOICE_DATE:20150301, INVOICE_NUMBER:'INV-Error_Test2', INVOICE_TOTAL:28,] 
    ] 
] 

invLineItems['INV-Error_Test2'].each { 
    println "LINE = "+ it['LINE'] 
} 

invLineItems['INV-Error_Test2']給出了第二映射條目的值，迭代上得到嵌套映射條目。

如果你只是需要的LINE那麼值

assert invLineItems.'INV-Error_Test2'*.'LINE' == [3, 4] 

應該夠了。