如何使用java過濾字符串/數組

Question

我需要幫助下面的問題。按代碼即時得到下面的輸出：

parameter_Name: Raghu 
parameter_Name: Kartik 
parameter_Name: sundar 

但在內容，如果我有下面的格式，

content = "Hi {{Raghu}}, this is your {{kartik}} last 4 {{sundar}}. {{each numberdetail}} {{loop_var. ABC}} {{loop_var. DEF}} {{loop_var. GHI}}{{end}}"; 

所以在上面的字符串，如果{{每個到來時，將過濾「{{each」，並將採用「numberdetail」作爲單獨的數組。如果{{loop_var出現，請刪除loop_var並在numbderdetail錯誤中添加ABC。如果我們發現{{end}}，那麼我們將終止該數組。

任何想法請。

預期輸出：

"Parameter_name": "Raghu", 
    "Salary": "32.17", 
    "LineDetail": [{ 
     "ABC": "0", 
     "DEF": "Device", 
     "GHI": "792.00" 
    }] 

代碼：

public class JavaTest { 

    public static void main(String[] args) { 

     String content = "Hi {{Raghu}}, this is your {{kartik}} last 4 {{sundar}}."; 

     String[] contentArray; 
     List contentArrayList = new ArrayList(); 

     if (content != null && content.trim() != "" && !content.equals("")) { 
      contentArray = content.split(" "); 
      for (String out : contentArray) { 
       if (!"".equals(out) && out.contains("{{")) { 
        String parameter_Name = out.substring(out.indexOf("{{") + 2, out.indexOf("}}")); 
        System.out.println("parameter_Name::" + parameter_Name); 
       } 
      } 
     } 
    } 
} 

Answer 1

嗯，我想這是你所需要的。

public class JavaTest { 

public static void main(String[] args) { 

    String content = "Hi {{Raghu}}, this is your {{kartik}} last 4 {{sundar}}. {{each numberdetail}} {{loop_var. ABC}} {{loop_var. DEF}} {{loop_var. GHI}}{{end}}"; 
    Pattern pattern = Pattern.compile("\\{\\{\\w+\\.* *\\w*\\}\\}"); 
    Matcher m = pattern.matcher(content); 
    List<String> list = new ArrayList<String>(); 

    while (m.find()) { 

     list.add(m.group().replaceAll("\\{", "").replaceAll("\\}", "")); 
    } 

    boolean insideLoop= false; 

    for (String current: list){ 

     if (current.startsWith("each")){ 
      insideLoop = true; 
      System.out.println("Parameter_Name: " + current.split(" ")[1] + ": [{"); 

     } else if (insideLoop){ 
      if (current.startsWith("loop_var.")){ 
       String value = current.split(" ")[1]; 
       System.out.println("\"" + value + "\""); 

      }else { 
       if (current.startsWith("end")){ 
        insideLoop = false; 
        System.out.println("}]"); 
       } 
      } 
     }else { 
      System.out.println("Parameter_Name: " + current); 
     } 
    } 

} 

}

輸出是：

Parameter_Name: Raghu 
Parameter_Name: kartik 
Parameter_Name: sundar 
Parameter_Name: numberdetail: [{ 
"ABC" 
"DEF" 
"GHI" 
}]