本文整理了Java中org.apache.commons.lang3.StringUtils.isAlpha()方法的一些代码示例，展示了StringUtils.isAlpha()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。StringUtils.isAlpha()方法的具体详情如下：
包路径：org.apache.commons.lang3.StringUtils
类名称：StringUtils
方法名：isAlpha

StringUtils.isAlpha介绍

[英]Checks if the CharSequence contains only Unicode letters.

null will return false. An empty CharSequence (length()=0) will return false.

StringUtils.isAlpha(null)   = false 
StringUtils.isAlpha("")     = false 
StringUtils.isAlpha("  ")   = false 
StringUtils.isAlpha("abc")  = true 
StringUtils.isAlpha("ab2c") = false 
StringUtils.isAlpha("ab-c") = false

[中]检查CharSequence是否仅包含Unicode字母。
null将返回false。空的CharSequence（length（）=0）将返回false。

StringUtils.isAlpha(null)   = false 
StringUtils.isAlpha("")     = false 
StringUtils.isAlpha("  ")   = false 
StringUtils.isAlpha("abc")  = true 
StringUtils.isAlpha("ab2c") = false 
StringUtils.isAlpha("ab-c") = false

代码示例

代码示例来源：origin: pmd/pmd

private Tuple2<Integer, String> getInsertionPointAndQuery(int searchPoint) {
  String input = myCodeArea.getText();
  int insertionPoint = getInsertionPoint(searchPoint, input);
  if (searchPoint > input.length()) {
    searchPoint = input.length();
  }
  if (insertionPoint > searchPoint) {
    throw new StringIndexOutOfBoundsException("Cannot extract query from subtext \"" + input.substring(0, insertionPoint) + "\"");
  }
  input = input.substring(insertionPoint, searchPoint).trim();
  return StringUtils.isAlpha(input) ? Tuples.t(insertionPoint, input.trim()) : null;
}

代码示例来源：origin: org.apache.commons/commons-lang3

@Test
public void testIsAlpha() {
  assertFalse(StringUtils.isAlpha(null));
  assertFalse(StringUtils.isAlpha(""));
  assertFalse(StringUtils.isAlpha(" "));
  assertTrue(StringUtils.isAlpha("a"));
  assertTrue(StringUtils.isAlpha("A"));
  assertTrue(StringUtils.isAlpha("kgKgKgKgkgkGkjkjlJlOKLgHdGdHgl"));
  assertFalse(StringUtils.isAlpha("ham kso"));
  assertFalse(StringUtils.isAlpha("1"));
  assertFalse(StringUtils.isAlpha("hkHKHik6iUGHKJgU7tUJgKJGI87GIkug"));
  assertFalse(StringUtils.isAlpha("_"));
  assertFalse(StringUtils.isAlpha("hkHKHik*khbkuh"));
}

代码示例来源：origin: virjar/vscrawler

@Override
protected  boolean handle(CharSequence str) {
  return StringUtils.isAlpha(str);
}

代码示例来源：origin: CryptoWorldChain/ewallet

/**
 * 检查字符串中的内容是否只包含字母，字符串为null将返回false，""将返回true，引用org.apache.commons.lang.StringUtils.isAlpha(String str)方法。<br>
 * 例：    <br>
 *         StringUtil.isAlpha(null)   = false        <br>
 *         StringUtil.isAlpha("")     = true        <br>
 *         StringUtil.isAlpha("  ")   = false        <br>
 *         StringUtil.isAlpha("abc")  = true        <br>
 * @param str 要检查的字符串 - 可能为null
 * @return boolean 如果字符串不为null且只包含字母返回true,否则返回false。
 */
public static boolean isAlpha(String str){
  return StringUtils.isAlpha(str);
}

代码示例来源：origin: co.cask.re/dre-core

public static boolean isalpha(CharSequence cs) {
 return StringUtils.isAlpha(cs);
}

代码示例来源：origin: dqeasycloud/easy-cloud

/**
 * 判断str是否全部为小写英文字母
 * <p>Checks if the String contains only unicode letters.</p>
 *
 * <p><code>null</code> will return <code>false</code>.
 * An empty String (length()=0) will return <code>true</code>.</p>
 *
 * <pre>
 * StringUtils.isAlpha(null)   = false
 * StringUtils.isAlpha("")     = true
 * StringUtils.isAlpha("  ")   = false
 * StringUtils.isAlpha("abc")  = true
 * StringUtils.isAlpha("ab2c") = false
 * StringUtils.isAlpha("ab-c") = false
 * </pre>
 *
 * @param str  the String to check, may be null
 * @return <code>true</code> if only contains letters, and is non-null
 * 
 * @author daiqi
 * @date 2017年12月5日 下午8:08:37
 */
public static boolean isAlpha(String str){
  return StringUtils.isAlpha(str);
}

代码示例来源：origin: io.github.aktoluna/slnarch-common

public static boolean isAlpha(String text) {
 boolean result = false;
 try {
  result = StringUtils.isAlpha(text);
 } catch (Exception e) {
  logger.error("Is Alpha Error", e);
 }
 return result;
}

代码示例来源：origin: com.alibaba.blink/flink-table

public static boolean isAlpha(Object obj) {
  if (obj == null){
    return false;
  }
  if (!(obj instanceof String)){
    return false;
  }
  String s = obj.toString();
  if ("".equals(s)) {
    return false;
  }
  return StringUtils.isAlpha(s);
}

代码示例来源：origin: jasperkrijgsman/dutch-sepa-iso20022

if(!StringUtils.isAlpha(country))
  return false;

代码示例来源：origin: PortSwigger/backslash-powered-scanner

static boolean mightBeOrderBy(String name, String value) {
  return (name.toLowerCase().contains("order") ||
      name.toLowerCase().contains("sort")) ||
      value.toLowerCase().equals("asc") ||
      value.toLowerCase().equals("desc") ||
      (StringUtils.isNumeric(value) && Double.parseDouble(value) <= 1000) ||
      (value.length() < 20 && StringUtils.isAlpha(value));
}

代码示例来源：origin: PortSwigger/param-miner

static boolean mightBeOrderBy(String name, String value) {
  return (name.toLowerCase().contains("order") ||
      name.toLowerCase().contains("sort")) ||
      value.toLowerCase().equals("asc") ||
      value.toLowerCase().equals("desc") ||
      (StringUtils.isNumeric(value) && Double.parseDouble(value) <= 1000) ||
      (value.length() < 20 && StringUtils.isAlpha(value));
}

代码示例来源：origin: org.apache.hadoop/hadoop-yarn-api

/**
 * Extract unit and actual value from resource value.
 * @param resourceValue Value of the resource
 * @return Array containing unit and value. [0]=unit, [1]=value
 * @throws IllegalArgumentException if units contain non alpha characters
 */
public static String[] parseResourceValue(String resourceValue) {
 String[] resource = new String[2];
 int i = 0;
 for (; i < resourceValue.length(); i++) {
  if (Character.isAlphabetic(resourceValue.charAt(i))) {
   break;
  }
 }
 String units = resourceValue.substring(i);
 if (StringUtils.isAlpha(units) || units.equals("")) {
  resource[0] = units;
  resource[1] = resourceValue.substring(0, i);
  return resource;
 } else {
  throw new IllegalArgumentException("Units '" + units + "'"
    + " contains non alphabet characters, which is not allowed.");
 }
}

代码示例来源：origin: org.datavec/datavec-dataframe

default Selection isAlpha() {
  Selection results = new BitmapBackedSelection();
  int i = 0;
  for (String next : this) {
    if (StringUtils.isAlpha(next)) {
      results.add(i);
    }
    i++;
  }
  return results;
}

代码示例来源：origin: org.xworker/xworker_core

public static boolean isAlpha(ActionContext actionContext){
  Thing self = actionContext.getObject("self");
  CharSequence cs  = (CharSequence) self.doAction("getCs", actionContext);
  return StringUtils.isAlpha(cs);
}