发布网友 发布时间:2022-04-08 23:18
共1个回答
热心网友 时间:2022-04-09 00:47
index_map.jsp中的代码:
复制代码
代码如下:
<%@
page
language="java"
pageEncoding="utf-8"%>
<%@
page
contentType="text/html;charset=utf-8"%>
<%
request.setCharacterEncoding("UTF-8");
response.setCharacterEncoding("UTF-8");
response.setContentType("text/html;
charset=utf-8");
%>
<html>
<head>
</head>
<body>
<form
action="insert_map.jsp"
method="post">
ID
:<input
type
=
"text"
name="id"
value="0"/>
名称
:<input
type
=
"text"
name="name"
value="aaa"/>
</br>
电压等级
:<input
type
=
"text"
name="voltage_level"
value="110kv"/>
经度
:<input
type
=
"text"
name="lon"
value="121."/>
纬度
:<input
type
=
"text"
name="lat"
value="28."/>
</br>
<input
type
=
"submit"
value="提交"/>
</form>
</body>
</html>
insert_map.jsp的代码:
复制代码
代码如下:
<%@
page
language="java"
import="java.util.*,java.sql.*"
pageEncoding="utf-8"%>
<%@
page
contentType="text/html;charset=utf-8"%>
<%
request.setCharacterEncoding("UTF-8");
response.setCharacterEncoding("UTF-8");
response.setContentType("text/html;
charset=utf-8");
%>
<HTML>
<HEAD>
<TITLE>add
message
into
table
</TITLE>
</HEAD>
<BODY>
<%
String
id=request.getParameter("id");
//从表单获得
String
name=request.getParameter("name");
//从表单获得
String
voltage_level=request.getParameter("voltage_level");
//从表单获得
String
lon=request.getParameter("lon");
//从表单获得
String
lat=request.getParameter("lat");
//从表单获得
java.util.Date
date=new
java.util.Date();
String
datetime=new
Timestamp(date.getTime()).toString();
try
{
/**
连接数据库参数
**/
String
driverName
=
"com.mysql.jdbc.Driver";
//驱动名称
String
DBUser
=
"root";
//mysql用户名
String
DBPasswd
=
"123456";
//mysql密码
String
DBName
=
"map_db";
//数据库名
String
connUrl
=
"jdbc:mysql://localhost/"
+
DBName
+
"?user="
+
DBUser
+
"&password="
+
DBPasswd;
Class.forName(driverName).newInstance();
Connection
conn
=
DriverManager.getConnection(connUrl);
Statement
stmt
=
conn.createStatement();
stmt.executeQuery("SET
NAMES
UTF8");
String
insert_sql
=
"INSERT
INTO
biandianzhan_point_tb
VALUES('"
+
id
+
"','"
+
name
+
"','"
+
voltage_level
+
"',GeometryFromText('POINT
("
+
lon
+
"
"
+
lat
+
")')
)";
String
query_sql
=
"select
*
from
biandianzhan_point_tb";
try
{
stmt.execute(insert_sql);
}catch(Exception
e)
{
e.printStackTrace();
}
try
{
ResultSet
rs
=
stmt.executeQuery(query_sql);
while(rs.next())
{
%>
ID:<%=rs.getString("id")%>
</br>
名称:<%=rs.getString("name")%>
</br>
电压等级:<%=rs.getString("voltage_level")%>
</br>
经纬度:<%=rs.getString("the_geom")%>
</br>
</br>
<%
}
}catch(Exception
e)
{
e.printStackTrace();
}
//rs.close();
stmt.close();
conn.close();
}catch
(Exception
e)
{
e.printStackTrace();
}
%>
</body>
</html>
访问index_map.jsp:
提交前数据库的值:
输入测试值并提交,得到如下页面:
数据库的变化如下:
可以看出,在上面的提交后的页面上经纬度是乱码的,原因是the_geom的数据类型是POINT类型,是几何数据类geometry类中的一个子类,有特定的格式,可能这种特定的格式没能被浏览器识别。我正在考虑的解决方案是将the_geom数据进行剥离,得到两个数值及经纬度。不过可能没这个必要,因为没必要显示这两个值。
总的来说,大功告成了一半吧,呵呵,今天收获很大啊!很开心!