From 5f19bfa5de6b65beb77fbf0fd1aedb4f9e78525d Mon Sep 17 00:00:00 2001 From: User_cyk <1020691186@qq.com> Date: Wed, 5 Jul 2023 17:27:39 +0800 Subject: [PATCH] =?UTF-8?q?=E5=A2=9E=E5=8A=A0=E7=82=B9=E8=B5=9E=E5=8A=9F?= =?UTF-8?q?=E8=83=BD?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- .../hellogithub/service/projectService.java | 2 +- ...upprotService.java => supportService.java} | 21 +++--- .../servlet/whetherAddLikeServlet.java | 72 ++++++++++++++++++ .../servlet/whetherCancelLikeServlet.java | 74 ++++++++++++++++++ .../servlet/whetherLikeServlet.java | 75 +++++++++++++++++++ 5 files changed, 233 insertions(+), 11 deletions(-) rename src/com/hellogithub/service/{supprotService.java => supportService.java} (54%) create mode 100644 src/com/hellogithub/servlet/whetherAddLikeServlet.java create mode 100644 src/com/hellogithub/servlet/whetherCancelLikeServlet.java create mode 100644 src/com/hellogithub/servlet/whetherLikeServlet.java diff --git a/src/com/hellogithub/service/projectService.java b/src/com/hellogithub/service/projectService.java index bf96181..306dfdd 100644 --- a/src/com/hellogithub/service/projectService.java +++ b/src/com/hellogithub/service/projectService.java @@ -14,7 +14,7 @@ import java.util.*; public class projectService { - private static projectDao projectDao = new projectDao(); + private projectDao projectDao = new projectDao(); private categoryDao categoryDao = new categoryDao(); /** * 按照期刊号查询 diff --git a/src/com/hellogithub/service/supprotService.java b/src/com/hellogithub/service/supportService.java similarity index 54% rename from src/com/hellogithub/service/supprotService.java rename to src/com/hellogithub/service/supportService.java index ecafae2..40b8f9d 100644 --- a/src/com/hellogithub/service/supprotService.java +++ b/src/com/hellogithub/service/supportService.java @@ -1,14 +1,15 @@ package com.hellogithub.service; +import com.hellogithub.dao.UserDao; import com.hellogithub.dao.supportDao; import com.hellogithub.entity.supportEntity; -public class supprotService { +public class supportService { private supportDao supportDao = new supportDao(); - - public int retNum(int userId,int projectId){ + private UserDao userDao = new UserDao(); + public int retNum(String username,int projectId){ int num ; - supportEntity supportEntity = supportDao.selectSupport(userId,projectId); + supportEntity supportEntity = supportDao.selectSupport(userDao.selectIdByName(username),projectId); if(supportEntity == null) { num =0; @@ -19,10 +20,10 @@ public class supprotService { return num ; } - public String insertSupport(int userId , int projectId) + public String insertSupport(String username, int projectId) { String tip; - int num = supportDao.insertSupport(userId,projectId); + int num = supportDao.insertSupport(userDao.selectIdByName(username),projectId); if(num == 1) { tip="点赞成功"; @@ -33,16 +34,16 @@ public class supprotService { return tip; } - public String deleteSupport(int userId , int projectId) + public String deleteSupport(String username, int projectId) { String tip; - int num = supportDao.deleteSupport(userId,projectId); + int num = supportDao.deleteSupport(userDao.selectIdByName(username),projectId); if(num == 1) { - tip="删除成功"; + tip="取消成功"; } else{ - tip="删除失败"; + tip="取消失败"; } return tip; } diff --git a/src/com/hellogithub/servlet/whetherAddLikeServlet.java b/src/com/hellogithub/servlet/whetherAddLikeServlet.java new file mode 100644 index 0000000..2f26922 --- /dev/null +++ b/src/com/hellogithub/servlet/whetherAddLikeServlet.java @@ -0,0 +1,72 @@ +package com.hellogithub.servlet; + +import com.alibaba.fastjson.JSONObject; +import com.hellogithub.entity.userEntity; +import com.hellogithub.service.supportService; +import jakarta.servlet.ServletConfig; +import jakarta.servlet.ServletException; +import jakarta.servlet.annotation.WebServlet; +import jakarta.servlet.http.HttpServlet; +import jakarta.servlet.http.HttpServletRequest; +import jakarta.servlet.http.HttpServletResponse; +import jakarta.servlet.http.HttpSession; + +import java.io.IOException; +import java.io.PrintWriter; +import java.util.HashMap; + +@WebServlet("/whetherAddLike") +public class whetherAddLikeServlet extends HttpServlet { + private com.hellogithub.service.supportService supportService = new supportService(); + @Override + public void init(ServletConfig config) throws ServletException { + + } + + @Override + protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { + doPost(req, resp); + } + + @Override + protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { + resp.setCharacterEncoding("UTF-8"); + resp.setContentType("text/html; charset=utf-8"); + // 设置响应头允许ajax跨域访问 + String curOrigin = req.getHeader("Origin"); + resp.setHeader("Access-Control-Allow-Origin", curOrigin == null ? "true" : curOrigin); + resp.setHeader("Access-Control-Allow-Credentials", "true"); + resp.setHeader("Access-Control-Allow-Methods", "POST, GET, OPTIONS, DELETE, HEAD"); + resp.setHeader("Access-Control-Max-Age", "3600"); + resp.setHeader("Access-Control-Allow-Headers", "access-control-allow-origin, authority, content-type, version-info, X-Requested-With"); + resp.setContentType("application/json;charset=UTF-8"); + PrintWriter writer = resp.getWriter(); + String proId = req.getParameter("proId"); + HttpSession session = req.getSession(); + userEntity userEntity= null; + userEntity=(userEntity)session.getAttribute("user"); + if(userEntity == null){ + setResultError("用户未登录，无法点赞",writer); + }else{ + String tip = supportService.insertSupport(userEntity.getUserName(),Integer.parseInt(proId)); + writer.println(tip); + } + } + + public void setResult(Integer code, String msg, PrintWriter writer) { + HashMap result = new HashMap<>(); + result.put("code", code); + result.put("msg", msg); + String jsonString = JSONObject.toJSONString(result); + writer.println(jsonString); + writer.close(); + } + + public void setResultError(String msg, PrintWriter writer) { + setResult(500, msg, writer); + } + + public void setResultOK(String msg, PrintWriter writer) { + setResult(200, msg, writer); + } +} diff --git a/src/com/hellogithub/servlet/whetherCancelLikeServlet.java b/src/com/hellogithub/servlet/whetherCancelLikeServlet.java new file mode 100644 index 0000000..42fc4a0 --- /dev/null +++ b/src/com/hellogithub/servlet/whetherCancelLikeServlet.java @@ -0,0 +1,74 @@ +package com.hellogithub.servlet; + +import com.alibaba.fastjson.JSONObject; +import com.hellogithub.entity.userEntity; +import com.hellogithub.service.supportService; +import jakarta.servlet.ServletConfig; +import jakarta.servlet.ServletException; +import jakarta.servlet.annotation.WebServlet; +import jakarta.servlet.http.HttpServlet; +import jakarta.servlet.http.HttpServletRequest; +import jakarta.servlet.http.HttpServletResponse; +import jakarta.servlet.http.HttpSession; + +import java.io.IOException; +import java.io.PrintWriter; +import java.util.HashMap; + +@WebServlet("/whetherCancelLike") +public class whetherCancelLikeServlet extends HttpServlet { + private com.hellogithub.service.supportService supportService = new supportService(); + @Override + public void init(ServletConfig config) throws ServletException { + + } + + @Override + protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { + doPost(req, resp); + } + + @Override + protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { + resp.setCharacterEncoding("UTF-8"); + resp.setContentType("text/html; charset=utf-8"); + // 设置响应头允许ajax跨域访问 + String curOrigin = req.getHeader("Origin"); + resp.setHeader("Access-Control-Allow-Origin", curOrigin == null ? "true" : curOrigin); + resp.setHeader("Access-Control-Allow-Credentials", "true"); + resp.setHeader("Access-Control-Allow-Methods", "POST, GET, OPTIONS, DELETE, HEAD"); + resp.setHeader("Access-Control-Max-Age", "3600"); + resp.setHeader("Access-Control-Allow-Headers", "access-control-allow-origin, authority, content-type, version-info, X-Requested-With"); + resp.setContentType("application/json;charset=UTF-8"); + PrintWriter writer = resp.getWriter(); + String proId = req.getParameter("proId"); + HttpSession session = req.getSession(); + userEntity userEntity= null; + userEntity=(userEntity)session.getAttribute("user"); + if(userEntity == null){ + setResultError("用户未登录，无法点赞",writer); + }else{ + String tip = supportService.deleteSupport(userEntity.getUserName(),Integer.parseInt(proId)); + writer.println(tip); + } + + } + + + public void setResult(Integer code, String msg, PrintWriter writer) { + HashMap result = new HashMap<>(); + result.put("code", code); + result.put("msg", msg); + String jsonString = JSONObject.toJSONString(result); + writer.println(jsonString); + writer.close(); + } + + public void setResultError(String msg, PrintWriter writer) { + setResult(500, msg, writer); + } + + public void setResultOK(String msg, PrintWriter writer) { + setResult(200, msg, writer); + } +} diff --git a/src/com/hellogithub/servlet/whetherLikeServlet.java b/src/com/hellogithub/servlet/whetherLikeServlet.java new file mode 100644 index 0000000..f0bf8a5 --- /dev/null +++ b/src/com/hellogithub/servlet/whetherLikeServlet.java @@ -0,0 +1,75 @@ +package com.hellogithub.servlet; + +import com.alibaba.fastjson.JSONObject; +import com.hellogithub.entity.userEntity; +import jakarta.servlet.ServletConfig; +import jakarta.servlet.ServletException; +import jakarta.servlet.annotation.WebServlet; +import jakarta.servlet.http.HttpServlet; +import jakarta.servlet.http.HttpServletRequest; +import jakarta.servlet.http.HttpServletResponse; +import com.hellogithub.service.supportService; +import jakarta.servlet.http.HttpSession; + +import java.io.IOException; +import java.io.PrintWriter; +import java.util.HashMap; + +@WebServlet("/whetherLike") +public class whetherLikeServlet extends HttpServlet { + private supportService supportService = new supportService(); + @Override + public void init(ServletConfig config) throws ServletException { + + } + + @Override + protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { + doPost(req, resp); + } + + @Override + protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { + resp.setCharacterEncoding("UTF-8"); + resp.setContentType("text/html; charset=utf-8"); + // 设置响应头允许ajax跨域访问 + String curOrigin = req.getHeader("Origin"); + resp.setHeader("Access-Control-Allow-Origin", curOrigin == null ? "true" : curOrigin); + resp.setHeader("Access-Control-Allow-Credentials", "true"); + resp.setHeader("Access-Control-Allow-Methods", "POST, GET, OPTIONS, DELETE, HEAD"); + resp.setHeader("Access-Control-Max-Age", "3600"); + resp.setHeader("Access-Control-Allow-Headers", "access-control-allow-origin, authority, content-type, version-info, X-Requested-With"); + resp.setContentType("application/json;charset=UTF-8"); + PrintWriter writer = resp.getWriter(); + String proId = req.getParameter("proId"); + HttpSession session = req.getSession(); + userEntity userEntity= null; + userEntity=(userEntity)session.getAttribute("user"); + if(userEntity == null) + { + writer.println(0); + } + else{ + int num = supportService.retNum(userEntity.getUserName(),Integer.parseInt(proId)); + writer.println(num); + } + writer.close(); + + } + public void setResult(Integer code, String msg, PrintWriter writer) { + HashMap result = new HashMap<>(); + result.put("code", code); + result.put("msg", msg); + String jsonString = JSONObject.toJSONString(result); + writer.println(jsonString); + writer.close(); + } + + public void setResultError(String msg, PrintWriter writer) { + setResult(500, msg, writer); + } + + public void setResultOK(String msg, PrintWriter writer) { + setResult(200, msg, writer); + } +}