You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
library_manage_system/src/servlet/admin/RuleAdd.java

96 lines
2.5 KiB

package servlet.admin;
import java.io.IOException;
import java.io.PrintWriter;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.Map;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.sql.Connection;
import javabean.Base;
import javabean.Common;
import javabean.Util;
@WebServlet("/admin/ruleAdd")
public class RuleAdd extends HttpServlet {
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
resp.setContentType("application/json; charset=utf8");
// 准备数据
Connection connection = null;
PreparedStatement pstmt = null;
ResultSet resultSet = null;
int result = 0;
String sql = "";
String borrow_library = "";
// 准备返回数据
int code = 1;
String msg = "";
// 获取数据
// 获取限定图书馆1、2、3
int num = 0;
try {
Map<String, String> libraryMap = Common.getLibraryMap();
System.out.println(libraryMap);
for(String key : libraryMap.keySet()) {
if(req.getParameter("borrow_library[" +key +"]") != null) {
if(num == 0) {
borrow_library += key;
num++;
}else {
borrow_library += "、"+key;
}
}
}
if(borrow_library.isEmpty()) {
msg = "允许图书馆不能为空";
}
} catch (SQLException e) {
msg = "获取图书馆失败";
}
String borrow_num = req.getParameter("borrow_num");
String limit_day = req.getParameter("limit_day");
String overtime_fee = req.getParameter("overtime_fee");
try {
connection = (Connection) Base.getConnection();
sql = "insert into rules(borrow_num, limit_day, borrow_library, overtime_fee) values(?,?,?,?)";
pstmt = connection.prepareStatement(sql);
pstmt.setString(1, borrow_num);
pstmt.setString(2, limit_day);
pstmt.setString(3, borrow_library);
pstmt.setString(4, overtime_fee);
result = pstmt.executeUpdate();
if(result == 1) {
code = 0;
msg = "success";
}
} catch (ClassNotFoundException e) {
msg = "classnotfound";
} catch (SQLException e) {
msg = "SQL错误";
} finally {
try {
Base.closeResource(connection, pstmt, null);
} catch (SQLException e) {
msg = "关闭失败";
}
}
PrintWriter out = resp.getWriter();
out.print(Util.jsonResponse(code, msg, null));
}
}