在 StringTokenizer 中有条件地添加字符串

Question

我目前在使用 StringTokenizer 时遇到一个非常简单但令人困惑的问题。我想要实现的目标如下：

我有一个 URL 字符串为：

http://xxx:port/jira/rest/api/2/search?jql=project='TP' AND
(status='Ready for INT Deployment' or status = 'Ready for UAT Deployment')

以上是基本字符串。现在我想向上面的 URL 动态添加更多查询参数，如下所示：

"AND (key=NN-1234 OR key=NN-4321 OR key=NN-65343.....)"

这是我的代码：

private String getPartialIssueList() {
    String listFromProperties = getPropertyValue("propagateList");
    StringTokenizer token = new StringTokenizer(listFromProperties, ",");
    StringBuilder partialListString = new StringBuilder();
    partialListString.append(" AND key=");

    while (token.hasMoreElements()) {
        partialListString.append(token.nextElement() + " OR key=" + token.nextElement());
    }
    return partialListString.toString();
}

不知怎的，这只有在我有 2 个输入时才有效。我想要的是，在基础 url 之后，应该添加一个 "AND"，然后是左括号“(”，然后是 key="value from properties"，属性中的值 2，属性中的值 3，然后右大括号“)”。不管我在属性文件中有多少 JIRA ID，它都应该继续添加 "OR key=NN-5432 OR key="NN-9875" 等等..

这是我正在寻找的输出：

http://xxx:port/jira/rest/api/2/search?jql=project='TP' AND 
(status='Ready for INT Deployment' or status = 'Ready for UAT Deployment') AND 
(key=NN-09876 OR key=NN-09873 OR key=NN-09376 OR key=NN-02876)

属性文件中 propagateList 的当前值为

propagateList="NN-09876","NN-65432","NN-65430"

有人可以帮忙吗？

Answer 1

您需要单独准备关键条件

private String getPartialIssueList() {
    String listFromProperties = getPropertyValue("propagateList");
    StringTokenizer token = new StringTokenizer(listFromProperties, ",");
    StringBuilder partialListString = new StringBuilder();
    partialListString.append(" AND ");
    partialListString.append("(");

    // Prepare key condition
    StringBuilder orKeys = new StringBuilder();
    while(token.hasMoreElements()) {
        // Replace token.nextToken() to token.nextToken().replaceAll("\"", "") if you don't want quotes
        orKeys.append("key=" + token.nextToken() + " OR ");
    }
    // Remove last "OR" and concatenate 
    partialListString.append(orKeys.toString().replaceAll(" OR $", ""));
    partialListString.append(")");

    return partialListString.toString();
}

结果：

System.out.println(getPartialIssueList());
AND (key="NN-09876" OR key="NN-65432" OR key="NN-65430")

现在，将基础 URL 连接到您的动态查询：

String base = "http://xxx:port/jira/rest/api/2/search?jql=project='TP' AND (status='Ready for INT Deployment' or status = 'Ready for UAT Deployment')";
base += getPartialIssueList();
System.out.println(base);
------------------------------------------
http://xxx:port/jira/rest/api/2/search?jql=project='TP' AND 
(status='Ready for INT Deployment' or status = 'Ready for UAT Deployment') AND 
(key="NN-09876" OR key="NN-65432" OR key="NN-65430")

Answer 2

我尝试了您的代码并进行了这些更改，它工作正常。如果有什么不对请告诉我。

private String getPartialIssueList() {
    String listFromProperties = getPropertyValue("propagateList");
    StringTokenizer token = new StringTokenizer(listFromProperties, ",");
    StringBuilder partialListString = new StringBuilder();
    partialListString.append(" AND (key="); // updated with ( 

    while (token.hasMoreTokens()) { // used tokens as it is a string
        partialListString.append(token.nextToken() + " OR key=" + token.nextElement());
    }
    partialListString.append(")"); // added closed bracket
    return partialListString.toString();
}

private String getPropertyValue(String propagateList) { // list is seperated by commas
    return "'Ready for INT Deployment', 'Ready for UAT Deployment'";
}

Answer 3

以下代码给出了您预期的输出

    private static String getPartialIssueList() {
           String listFromProperties = "NN-09876, NN-65432, NN-65430";
           StringTokenizer token = new StringTokenizer(listFromProperties, ",");
           StringBuilder partialListString = new StringBuilder();
           partialListString.append(" AND key=");

           while (token.hasMoreTokens()) {

               partialListString.append(token.nextToken());
               if(token.hasMoreTokens()) {
                    partialListString.append(" OR key=" );
               } else {
                    break;
                 }
           }
           return partialListString.toString();
    }

在使用 hasMoreElements() 查看是否有下一个元素后，应调用方法 nextElement()。您的代码仅适用于偶数输入，因为每次检查后它都会调用 nextElement() 两次，因此如果检查后有两个元素，它会起作用，如果只有一个，则第一次调用会起作用，并且第二个抛出 NoSuchMethodException。

在 StringTokenizer 中有条件地添加字符串

Conditionally Adding String in StringTokenizer

java

stringtokenizer