65 lines
2.5 KiB
Java
65 lines
2.5 KiB
Java
package com.demo;
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import java.io.*;
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import javax.servlet.*;
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import javax.servlet.http.*;
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import com.demo.BookBean;
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import com.dao.BookDao;
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import javax.servlet.annotation.WebServlet;
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@WebServlet("/BookInsertServlet")
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public class BookInsertServlet extends HttpServlet {
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public void doPost(HttpServletRequest request, HttpServletResponse response)
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throws ServletException, IOException {
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// 设置请求和响应的字符编码
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request.setCharacterEncoding("UTF-8");
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response.setCharacterEncoding("UTF-8");
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response.setContentType("text/html;charset=UTF-8");
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String message = null;
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try {
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// 获取并验证请求参数
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String bookid = request.getParameter("bookid");
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String title = request.getParameter("title");
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String author = request.getParameter("author");
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String publisher = request.getParameter("publisher");
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String priceStr = request.getParameter("price");
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// 参数验证
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if (bookid == null || title == null || author == null ||
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publisher == null || priceStr == null ||
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bookid.trim().isEmpty() || title.trim().isEmpty() ||
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author.trim().isEmpty() || publisher.trim().isEmpty() ||
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priceStr.trim().isEmpty()) {
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message = "请填写完整的图书信息！";
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request.setAttribute("result", message);
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request.getRequestDispatcher("/bookInsert.jsp").forward(request, response);
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return;
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}
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float price = Float.parseFloat(priceStr);
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// 创建图书对象
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BookBean book = new BookBean(bookid, title, author, publisher, price);
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BookDao bookdao = new BookDao();
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boolean success = bookdao.insertBook(book);
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message = success ? "成功插入一条记录！" : "插入记录错误！";
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} catch (NumberFormatException e) {
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message = "价格格式不正确！";
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} catch (Exception e) {
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message = "系统错误：" + e.getMessage();
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e.printStackTrace();
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}
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request.setAttribute("result", message);
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request.getRequestDispatcher("/bookInsert.jsp").forward(request, response);
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}
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public void doGet(HttpServletRequest request, HttpServletResponse response)
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throws ServletException, IOException {
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doPost(request, response);
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}
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}
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