jspblog : boardlist paging

jspblog/src/main/java/com/example/jspblog/domain/board/BoardDao.java

@@ -34,8 +34,8 @@ public class BoardDao {
         return -1;
     }
 
-    public List<Board> findAll() {
-        String sql = "select * from board order by id desc";
+    public List<Board> findAll(int page) {
+        String sql = "select * from board order by id desc limit ?, 4";
         Connection conn = DB.getConnection();
         PreparedStatement pstmt = null;
         ResultSet rs = null;
@@ -44,6 +44,7 @@ public class BoardDao {
         if (conn != null) {
             try {
                 pstmt = conn.prepareStatement(sql);
+                pstmt.setInt(1, page * 4);
                 rs = pstmt.executeQuery();
                 while (rs.next()) {
                     Board board = Board.builder()

jspblog/src/main/java/com/example/jspblog/service/BoardService.java

@@ -18,7 +18,7 @@ public class BoardService {
         return boardDao.write(dto);
     }
 
-    public List<Board> 글목록보기() {
-        return boardDao.findAll();
+    public List<Board> 글목록보기(int page) {
+        return boardDao.findAll(page);
     }
 }

jspblog/src/main/java/com/example/jspblog/web/BoardController.java

@@ -59,7 +59,8 @@ public class BoardController extends HttpServlet {
                 break;
             }
             case "list" :
-                List<Board> boards = boardService.글목록보기();
+                int page = Integer.parseInt(request.getParameter("page"));
+                List<Board> boards = boardService.글목록보기(page);
                 request.setAttribute("boards", boards);
                 request.getRequestDispatcher("board/list.jsp").forward(request, response);
         }

jspblog/src/main/webapp/board/list.jsp

@@ -29,8 +29,8 @@
     </c:forEach>
     <br />
     <ul class="pagination justify-content-center">
-        <li class="page-item disabled"><a class="page-link" href="#">Previous</a></li>
-        <li class="page-item"><a class="page-link" href="#">Next</a></li>
+        <li class="page-item"><a class="page-link" href="${pageContext.request.contextPath}/board?cmd=list&page=${param.page-1}">Previous</a></li>
+        <li class="page-item"><a class="page-link" href="${pageContext.request.contextPath}/board?cmd=list&page=${param.page+1}">Next</a></li>
     </ul>
 </div>
 

jspblog/src/main/webapp/index.jsp

@@ -1,5 +1,5 @@
 <%@ page contentType="text/html; charset=UTF-8" pageEncoding="UTF-8" %>
 
 <%
-    request.getRequestDispatcher("board?cmd=list").forward(request, response);
+    request.getRequestDispatcher("board?cmd=list&page=0").forward(request, response);
 %>