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java实现输入汉字自动显示汉字的首拼音字母

2011-06-11 21:26 429 查看

1.首先去官网下载pinyin4j-2.5.0.jar

，放到eclipse的classpath下

2.新建一个hanZiToPinYin.jsp页面，代码如下

<%@ page language="java" import="java.util.*" pageEncoding="GB18030"%>

<%

String path = request.getContextPath();

String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";

%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">

<html>

<head>

<base href="<%=basePath%>">

<title>My JSP 'hanZiToPinYin.jsp' starting page</title>

<meta http-equiv="pragma" content="no-cache">

<meta http-equiv="cache-control" content="no-cache">

<meta http-equiv="expires" content="0">

<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">

<meta http-equiv="description" content="This is my page">



<script type="text/javascript">

var xmlHttp;

function toPinYin(){

var hanzi=document.getElementById("hanzi").value;

if(window.ActiveXObject){

xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");

}else if(window.XMLHttpRequest){

xmlHttp = new XMLHttpRequest();

}

if(null!=xmlHttp){

xmlHttp.open("GET","ToPinYinServlet?hanzi="+hanzi,true);

xmlHttp.onreadystatechange = callback;

xmlHttp.send(null);

}

}

function callback(){

if(xmlHttp.readyState == 4){

if(xmlHttp.status == 200){

var responseText = xmlHttp.responseText;

document.getElementById("pinyin").value = responseText;

}

}

}

</script>

</head>

<body>

<form>

输入汉字:<input type="text" name="hanzi" id="hanzi" onblur="toPinYin();"></br>

拼音为:<input type="text" name="pinyin" id="pinyin"/>

</form>

</body>

</html>

3.新建一个ToPinYinServlet.java文件，代码如下

import java.io.IOException;

import java.io.PrintWriter;

import javax.servlet.ServletException;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

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.HanyuPinyinVCharType;

import net.sourceforge.pinyin4j.format.exception.BadHanyuPinyinOutputFormatCombination;

public class ToPinYinServlet extends HttpServlet {

public void doGet(HttpServletRequest request, HttpServletResponse response)

throws ServletException, IOException {

response.setContentType("text/html;charset=gbk");

PrintWriter out = response.getWriter();

String hanzi = request.getParameter("hanzi");

String hanzhis = new String(hanzi.getBytes("iso-8859-1"),"gbk");

CharSequence s= hanzhis;

char [] hanzhi=new char[s.length()];

for(int i=0;i<s.length();i++){

hanzhi[i]=s.charAt(i);

}

char [] t1 =hanzhi;

String[] t2 = new String[s.length()];

/**

* 设置输出格式

*/

net.sourceforge.pinyin4j.format.HanyuPinyinOutputFormat t3 = new HanyuPinyinOutputFormat();

t3.setCaseType(HanyuPinyinCaseType.LOWERCASE);

t3.setToneType(HanyuPinyinToneType.WITHOUT_TONE);

t3.setVCharType(HanyuPinyinVCharType.WITH_V);

int t0=t1.length;

String py = "";

try {

for (int i=0;i<t0;i++){

t2 = PinyinHelper.toHanyuPinyinStringArray(t1[i], t3);

py=py+t2[0].charAt(0);//获取首字母

}

}

catch (BadHanyuPinyinOutputFormatCombination e1) {

e1.printStackTrace();

}

out.write(py.trim().toString());

}

public void doPost(HttpServletRequest request, HttpServletResponse response)

throws ServletException, IOException {

doGet(request, response);

}

}

4.配置web.xml文件

<?xml version="1.0" encoding="UTF-8"?>

<web-app version="2.5"

xmlns="http://java.sun.com/xml/ns/javaee"

xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
<servlet>

<servlet-name>ToPinYinServlet</servlet-name>

<servlet-class>ToPinYinServlet</servlet-class>

</servlet>

<servlet-mapping>

<servlet-name>ToPinYinServlet</servlet-name>

<url-pattern>/ToPinYinServlet</url-pattern>

</servlet-mapping>

<welcome-file-list>

<welcome-file>index.jsp</welcome-file>

</welcome-file-list>

</web-app>

5.部署web项目，在浏览器中输入url

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