根据自己设计的一些功能，今天还差的就是修改密码和查看账本，一些分类查看。
按月份查找：
按收支查找：
修改密码：
1 package Servlet; 2 3 import java.io.IOException; 4 import java.util.List; 5 6 import javax.servlet.ServletException; 7 import javax.servlet.annotation.WebServlet; 8 import javax.servlet.http.HttpServlet; 9 import javax.servlet.http.HttpServletRequest; 10 import javax.servlet.http.HttpServletResponse; 11 12 13 14 import Dao.Dao; 15 import bean.Usertable; 16 import bean.Account; 17 18 19 20 /** 21 * Servlet implementation class Servlet 22 */ 23 @WebServlet("/Servlet") 24 public class Servlet extends HttpServlet { 25 Dao dao = new Dao(); 26 Usertable name = new Usertable(); 27 private static final long serialVersionUID = 1L; 28 29 protected void service(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { 30 req.setCharacterEncoding("utf-8"); 31 String method = req.getParameter("method"); 32 System.out.println(method); 33 if ("denglu".equals(method)) {//登录 34 System.out.println("ok"); 35 denglucheck(req, resp); 36 } 37 else if("load".equals(method)) {//查看账单 38 System.out.println(method); 39 listall(req,resp); 40 } 41 else if("getuserbyid".equals(method)) { 42 System.out.println(method); 43 getUserById(req,resp); 44 } 45 else if("update1".equals(method)) {//修改密码 46 System.out.println(method); 47 Update1(req,resp); 48 } 49 else if("update2".equals(method)) {//修改密码 50 System.out.println(method); 51 Update2(req,resp); 52 } 53 else if("zhuce".equals(method)) {//注册 54 System.out.println(method); 55 Adduser(req,resp); 56 } 57 else if("addaccount".equals(method))//记账 58 { 59 Addaccount(req,resp); 60 } 61 else if("time".equals(method)) 62 { 63 time(req,resp); 64 } 65 else if("mtype".equals(method)) 66 { 67 mtype(req,resp); 68 } 69 } 70 71 private void mtype(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException{ 72 // TODO Auto-generated method stub 73 response.setContentType("text/html;charset=utf8"); 74 request.setCharacterEncoding("utf-8"); 75 response.getWriter().append("Served at: ").append(request.getContextPath()); 76 String time=""; 77 String mtype = request.getParameter("mtype"); 78 System.out.println(mtype); 79 List<Account> account = dao.search(time, mtype); 80 request.setAttribute("account", account); 81 request.getRequestDispatcher("list.jsp").forward(request, response); 82 } 83 84 private void time(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException{ 85 // TODO Auto-generated method stub 86 response.setContentType("text/html;charset=utf8"); 87 request.setCharacterEncoding("utf-8"); 88 response.getWriter().append("Served at: ").append(request.getContextPath()); 89 String mtype=""; 90 String time = request.getParameter("time"); 91 time = "2019-" + time; 92 System.out.println(time); 93 List<Account> account = dao.search(time, mtype); 94 request.setAttribute("account", account); 95 request.getRequestDispatcher("list.jsp").forward(request, response); 96 } 97 98 private void Update2(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException{ 99 // TODO Auto-generated method stub 100 response.setContentType("text/html;charset=utf8"); 101 request.setCharacterEncoding("utf-8"); 102 response.getWriter().append("Served at: ").append(request.getContextPath()); 103 String username = request.getParameter("name"); 104 String pwd1 = request.getParameter("pwd1"); 105 String pwd2 = request.getParameter("pwd2"); 106 Usertable bean1 = new Usertable(username,pwd1); 107 Usertable bean = new Usertable(username,pwd2); 108 int a = 0; 109 if(dao.getpwdByuser(username).equals(bean1)) { 110 if(dao.update(bean)) 111 { 112 a = 1; 113 } 114 } 115 request.setAttribute("a", a); 116 request.getRequestDispatcher("change_res.jsp").forward(request, response); 117 } 118 119 private void Addaccount(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException{ 120 // TODO Auto-generated method stub 121 response.setContentType("text/html;charset=utf8"); 122 request.setCharacterEncoding("utf-8"); 123 response.getWriter().append("Served at: ").append(request.getContextPath()); 124 String thing = request.getParameter("thing"); 125 int money = Integer.valueOf(request.getParameter("money")); 126 String mtype = request.getParameter("mtype"); 127 System.out.println(thing + mtype+money ); 128 String time = Dao.getNowTime(); 129 if(mtype.equals("支出")) 130 { 131 money =0-money; 132 mtype = "支出"; 133 } 134 else {mtype = "收入";} 135 Account acc = new Account(thing,money,mtype,time); 136 Dao.addNote(acc); 137 int a = 0; 138 //if(Dao.addNote(acc)) 139 //UUser = Integer.valueOf(request.getParameter("logname")); 140 141 request.setAttribute("a", a); 142 request.getRequestDispatcher("addacc_res.jsp").forward(request, response); 143 } 144 145 private void Adduser(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { 146 // TODO Auto-generated method stub 147 response.setContentType("text/html;charset=utf8"); 148 request.setCharacterEncoding("utf-8"); 149 response.getWriter().append("Served at: ").append(request.getContextPath()); 150 String username = request.getParameter("logname"); 151 String pwd = request.getParameter("logpass1"); 152 String mail = request.getParameter("mail"); 153 Usertable bean = new Usertable(username,pwd,mail); 154 int a = 0; 155 if(dao.checkusername(username)) 156 { 157 Dao.addusers(bean); 158 a = 1; 159 } 160 //UUser = Integer.valueOf(request.getParameter("logname")); 161 162 request.setAttribute("a", a); 163 request.getRequestDispatcher("zhuce_res.jsp").forward(request, response); 164 165 } 166 167 private void Update1(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException{ 168 // TODO Auto-generated method stub 169 response.setContentType("text/html;charset=utf8"); 170 request.setCharacterEncoding("utf-8"); 171 response.getWriter().append("Served at: ").append(request.getContextPath()); 172 String username = name.getUsername(); 173 System.out.println(username); 174 request.setAttribute("username", username); 175 request.getRequestDispatcher("change.jsp").forward(request, response); 176 } 177 178 private void getUserById(HttpServletRequest req, HttpServletResponse resp) { 179 // TODO Auto-generated method stub 180 181 } 182 183 private void listall(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException{ 184 // TODO Auto-generated method stub 185 req.setCharacterEncoding("utf-8"); 186 List<Account> account = dao.list(); 187 req.setAttribute("account", account); 188 req.getRequestDispatcher("list.jsp").forward(req,resp); 189 } 190 191 private void denglucheck(HttpServletRequest req, HttpServletResponse resp)throws ServletException, IOException { 192 // TODO Auto-generated method stub 193 resp.setContentType("text/html;charset=utf8"); 194 req.setCharacterEncoding("utf-8"); 195 resp.getWriter().append("Served at: ").append(req.getContextPath()); 196 String username = req.getParameter("logname"); 197 String pwd = req.getParameter("logpass"); 198 String t = Dao.getNowTime(); 199 Usertable bean = new Usertable(username,pwd); 200 System.out.println("用户名："+username+"密码："+pwd +"时间：" + t); 201 int a = 0; 202 if(!dao.checkusername(username)) 203 { 204 Usertable p=dao.getpwdByuser(username); 205 if(p.getPwd().equals(pwd)) 206 { 207 a = 1; 208 name = bean; 209 } 210 //UUser = Integer.valueOf(request.getParameter("logname")); 211 } 212 req.setAttribute("a", a); 213 req.setAttribute("username", username); 214 req.getRequestDispatcher("panduan.jsp").forward(req, resp); 215 req.getRequestDispatcher("top.jsp").forward(req, resp); 216 } 217 218 /** 219 * @see HttpServlet#HttpServlet() 220 */ 221 public Servlet() { 222 super(); 223 // TODO Auto-generated constructor stub 224 } 225 226 /** 227 * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response) 228 */ 229 protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { 230 // TODO Auto-generated method stub 231 response.getWriter().append("Served at: ").append(request.getContextPath()); 232 } 233 234 /** 235 * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response) 236 */ 237 protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { 238 // TODO Auto-generated method stub 239 doGet(request, response); 240 } 241 242 }