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jsp实现textarea中的文字保存换行空格存到数据库的方法

2018年02月02日  | 移动技术网IT编程  | 我要评论

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uploadnews.jsp

<%@ page language="java" contenttype="text/html; charset=utf-8"
 pageencoding="utf-8"%>
<!doctype html public "-//w3c//dtd html 4.01 transitional//en" "http://www.w3.org/tr/html4/loose.dtd">
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8">
<title>上传新闻</title>
<script language="javascript">
function upload(){
 document.getelementbyid("article").value = document
 .getelementbyid("content").value;
 document.getelementbyid("formid").submit();
 }
</script>
</head>
<body>
 <form method="post" action="shangchuannews.jsp" id="formid">
  <table border="0" align="center">
   <tr>
    <td>title      <input type="text"
     name="title" value="a" size="40">
    </td>
   </tr>
   <tr>
    <td>author  <input type="text" name="author"
     size="40">
    </td>
   </tr>
   <tr>
    <td><input type="hidden" id="article"
     name="articlename" /></td>
   </tr>
   <tr>
    <td>date(xxxx.xx.xx)<input type="text" name="date" size="40">
    </td>
   </tr>
   <tr>
    <td><div align="center">
      <input type="button" value="submit" class="btn2" onclick = "upload();" />
     </div></td>
   </tr>
   <tr>
    <td><textarea rows="30" cols="80" id="content"></textarea></td>
   </tr>
  </table>
 </form>
</body>
</html>

换行函数在shangchuannews.jsp 代码如下

<%@page import="java.io.printwriter"%>
<%@page import="java.net.urldecoder"%>
<%@ page language="java" contenttype="text/html; charset=utf-8" 
 pageencoding="utf-8" %> 
<%@ page import="java.sql.*" %> 
<!doctype html public "-//w3c//dtd html 4.01 transitional//en" "http://www.w3.org/tr/html4/loose.dtd"> 

<html> 
<head> 
<meta http-equiv="content-type" content="text/html; utf-8"> 
<title>上传新闻</title> 
</head> 
<body> 
<%! // 字符处理函数 换行符变成<br>
public string turn(string str) { 
 while (str.indexof("\n") != -1) { 
  str = str.substring(0, str.indexof("\n")) + "<br>" 
    + str.substring(str.indexof("\n") + 1); 
 } 
 while (str.indexof(" ") != -1) { 
  str = str.substring(0, str.indexof(" ")) + " " 
    + str.substring(str.indexof(" ") + 1); 
 } 
 return str; 
} 
%>
<% 
try {
 request.setcharacterencoding("utf-8");
 string title = request.getparameter("title");
 string author = request.getparameter("author");
 string article = request.getparameter("articlename");
 string articlebr = turn(article);
 string date = request.getparameter("date");
 string driverclass="com.mysql.jdbc.driver";
 string url = "jdbc:mysql://****.****/****?characterencoding=utf8";//存到数据库不会乱码
 string user="***"; 
 string password="****";
 connection conn;
 int i=0;
 class.forname(driverclass).newinstance();
 conn = drivermanager.getconnection(url,user,password);
 string sql = "insert into news (id,title,author,article,date) "
   + "values(?,?,?,?,?)";
 connection conn1 = drivermanager.getconnection(url, user, password);
 preparedstatement pstmt;
 pstmt = (preparedstatement) conn1.preparestatement(sql);
 pstmt.setstring(1, null);
 pstmt.setstring(2, title);
 pstmt.setstring(3, author);
 pstmt.setstring(4, articlebr);
 pstmt.setstring(5, date);
 i = pstmt.executeupdate();
 conn1.close();
 pstmt.close();
 out.println("<br>上传成功");
} catch (exception e) {
 // todo auto-generated catch block
 e.printstacktrace();
}
%> 
</body> 
</html>

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