kettle通过java步骤获取汉字首拼

用途描述

一组数据，需要获取汉字首拼后，输出；

实现效果

添加jar包

pinyin4j-2.5.0.jar

自定义常量数据

Java代码

完整代码：

import net.sourceforge.pinyin4j.PinyinHelper;
import net.sourceforge.pinyin4j.format.HanyuPinyinCaseType;
import net.sourceforge.pinyin4j.format.HanyuPinyinOutputFormat;
import net.sourceforge.pinyin4j.format.HanyuPinyinToneType;
import net.sourceforge.pinyin4j.format.exception.BadHanyuPinyinOutputFormatCombination;String nameField;
String pyField;public boolean processRow(StepMetaInterface smi, StepDataInterface sdi) throws KettleException
{// Let's look up parameters only once for performance reason.	// 	if (first) {	nameField = "name";//getParameter("name");	pyField = "py" ; // getParameter("py");	first=false;	}// First, get a row from the default input hop//Object[] r = getRow();// If the row object is null, we are done processing.//if (r == null) {setOutputDone();return false;	}// It is always safest to call createOutputRow() to ensure that your output row's Object[] is large// enough to handle any new fields you are creating in this step.//Object[] outputRow = createOutputRow(r, data.outputRowMeta.size());String name = get(Fields.In, nameField).getString(r);	// Set the value in the output field	//String py = toFirstChar(name);	get(Fields.Out, pyField).setValue(outputRow, py);	// putRow will send the row on to the default output hop.	//putRow(data.outputRowMeta, outputRow);return true;
}/*** 获取字符串拼音的第一个字母*/
public static String toFirstChar(String chinese){String pinyinStr = "";char[] newChar = chinese.toCharArray();  //转为单个字符HanyuPinyinOutputFormat defaultFormat = new HanyuPinyinOutputFormat();defaultFormat.setCaseType(HanyuPinyinCaseType.LOWERCASE);defaultFormat.setToneType(HanyuPinyinToneType.WITHOUT_TONE);for (int i = 0; i < newChar.length; i++) {if (newChar[i] > 128) {try {pinyinStr += PinyinHelper.toHanyuPinyinStringArray(newChar[i], defaultFormat)[0].charAt(0);} catch (BadHanyuPinyinOutputFormatCombination e) {e.printStackTrace();}}else{pinyinStr += newChar[i];}}return pinyinStr;
}/*** 汉字转为拼音*/
public static String toPinyin(String chinese){String pinyinStr = "";char[] newChar = chinese.toCharArray();HanyuPinyinOutputFormat defaultFormat = new HanyuPinyinOutputFormat();defaultFormat.setCaseType(HanyuPinyinCaseType.LOWERCASE);defaultFormat.setToneType(HanyuPinyinToneType.WITHOUT_TONE);for (int i = 0; i < newChar.length; i++) {if (newChar[i] > 128) {try {pinyinStr += PinyinHelper.toHanyuPinyinStringArray(newChar[i], defaultFormat)[0];} catch (BadHanyuPinyinOutputFormatCombination e) {e.printStackTrace();}}else{pinyinStr += newChar[i];}}return pinyinStr;
}

–END–