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一個(gè)JSP從數(shù)據(jù)庫(kù)中生成XML文件的例子

一個(gè)JSP從數(shù)據(jù)庫(kù)生成XML文件的例子：

getTable.jsp

<%@ page contentType="text/xml; charset=gb2312" %>

<%@ page import="java.io.*"%>

<%@ page import="java.sql.*, javax.sql.*" %>

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

<%@ page import="java.math.*"%>

Connection conn;

Statement stmt;

ResultSet rs;

try{

String table_name = request.getParameter("tableName");

//mysql連接

//Class.forName("com.mysql.jdbc.Driver").newInstance();

//String URL="jdbc:mysql://localhost:3306/job?user=root&password=111111";

//Connection con = DriverManager.getConnection(URL);

//oracle連接

Class.forName("oracle.jdbc.driver.OracleDriver").newInstance();

String URL="jdbc:oracle:thin:@10.88.3.230:1521:cust";

String user="vincent";

String password="123456";

conn = DriverManager.getConnection(URL,user,password);

stmt = conn.createStatement();

String sql = " SELECT * FROM "+table_name;

rs = stmt.executeQuery(sql);

// 設(shè)置表格的名字

String tableName = table_name.toUpperCase();

//得到列的名字

ResultSetMetaData rsmd = rs.getMetaData();

int numColumns = rsmd.getColumnCount();

String[] columnNames = new String[numColumns];

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

columnNames[i] = rsmd.getColumnName(i + 1);

}

response.setContentType("text/xml");

out.write("<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n");

out.write("<" + tableName + "s>");

//循環(huán)寫入數(shù)據(jù)

while (rs.next()) {

out.write("<" + tableName + ">");

//每一行

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

out.write("<" + columnNames[i] + ">");

out.write(String.valueOf(rs.getObject(i + 1)));

out.write("</" + columnNames[i] + ">\n");

}

out.write("</" + tableName + ">");

}

out.write("</" + tableName + "s>");

rs.close();

conn.close();

}

finally{

}

//結(jié)束
通過(guò)地址就可以訪問(wèn)了:

http://127.0.0.1:7001/getTable.jsp?tableName=emp

posted on 2005-11-24 12:37 甘先生閱讀(1533) 評(píng)論(0) 編輯收藏所屬分類: Oracle 、JavaEE

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