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前段时间 做了个学校的春萌项目,其中用到vue连接后端java接口。
先上后端接口代码:
package controller; import net.sf.json.JSONObject; import util.DBUtil; 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 javax.servlet.http.HttpSession; import java.io.IOException; import java.sql.Connection; import java.sql.Date; import java.sql.PreparedStatement; import java.sql.ResultSet; @WebServlet(name = "login",urlPatterns = "/login") public class login extends HttpServlet { protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { HttpSession session = request.getSession(true); String username = request.getParameter("username"); String password = request.getParameter("password"); DBUtil dbUtil = new DBUtil(); Connection connection = dbUtil.getConnection(); PreparedStatement preparedStatement; ResultSet rs; String psw=""; String sql = "select password from `user` where username="; try { preparedStatement = connection.prepareStatement(sql); preparedStatement.setInt(1,Integer.parseInt(username)); rs = preparedStatement.executeQuery(); while (rs.next()){ psw = rs.getString("password"); } } catch (Exception e){ e.printStackTrace(); } if (password.equals(psw)){ session.setAttribute("username",username); response.getWriter().print("true"); } else response.getWriter().print("false"); } protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { } }
前端调用:
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Login</title> <script src="/UploadFiles/2021-04-02/vue.js">以上这篇Vue调用后端java接口的实例代码就是小编分享给大家的全部内容了,希望能给大家一个参考,也希望大家多多支持。
标签:
Vue,调用,java接口
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