本文整理了Java中org.apache.sling.commons.json.JSONArray.optString()方法的一些代码示例，展示了JSONArray.optString()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。JSONArray.optString()方法的具体详情如下：
包路径：org.apache.sling.commons.json.JSONArray
类名称：JSONArray
方法名：optString

JSONArray.optString介绍

[英]Get the optional string value associated with an index. It returns an empty string if there is no value at that index. If the value is not a string and is not null, then it is coverted to a string.
[中]获取与索引关联的可选字符串值。如果该索引处没有值，则返回空字符串。如果值不是字符串且不为null，则将其转换为字符串。

代码示例

代码示例来源：origin: org.apache.sling/org.apache.sling.commons.json

/**
 * Get the optional string value associated with an index. It returns an
 * empty string if there is no value at that index. If the value
 * is not a string and is not null, then it is coverted to a string.
 *
 * @param index The index must be between 0 and length() - 1.
 * @return      A String value.
 */
public String optString(int index) {
  return optString(index, "");
}

代码示例来源：origin: io.wcm/io.wcm.handler.richtext

/**
 * Support legacy data structures where link metadata is stored as JSON fragment in single HTML5 data attribute.
 * @param resourceProps ValueMap to write link metadata to
 * @param element Link element
 */
private boolean getAnchorLegacyMetadataFromSingleData(ValueMap resourceProps, Element element) {
 boolean foundAny = false;
 JSONObject metadata = null;
 Attribute dataAttribute = element.getAttribute("data");
 if (dataAttribute != null) {
  String metadataString = dataAttribute.getValue();
  if (StringUtils.isNotEmpty(metadataString)) {
   try {
    metadata = new JSONObject(metadataString);
   }
   catch (JSONException ex) {
    log.debug("Invalid link metadata: " + metadataString, ex);
   }
  }
 }
 if (metadata != null) {
  JSONArray names = metadata.names();
  for (int i = 0; i < names.length(); i++) {
   String name = names.optString(i);
   resourceProps.put(name, metadata.opt(name));
   foundAny = true;
  }
 }
 return foundAny;
}

代码示例来源：origin: io.wcm/io.wcm.handler.richtext

if (metadataPropertyNames != null) {
 for (int i = 0; i < metadataPropertyNames.length(); i++) {
  String metadataPropertyName = metadataPropertyNames.optString(i);
    values.add(valueArray.optString(j));

代码示例来源：origin: io.wcm/io.wcm.handler.richtext

String[] values = new String[jsonArray.length()];
for (int i = 0; i < jsonArray.length(); i++) {
 values[i] = jsonArray.optString(i);