增加用户查看点赞项目

src/com/hellogithub/dao/supportDao.java

@@ -5,9 +5,12 @@ import com.hellogithub.entity.supportEntity;
 import com.hellogithub.utils.JdbcUtils;
 import org.apache.commons.dbutils.QueryRunner;
 import org.apache.commons.dbutils.handlers.BeanHandler;
+import org.apache.commons.dbutils.handlers.BeanListHandler;
 
 import java.sql.Connection;
 import java.sql.SQLException;
+import java.util.ArrayList;
+import java.util.List;
 
 public class supportDao {
     public supportEntity selectSupport(int userId,int projectId)
@@ -56,4 +59,20 @@ public class supportDao {
 
         return num;
     }
+
+    public List<supportEntity> selectProject(int userId)
+    {
+        List<supportEntity> supportEntityList =new ArrayList<>();
+        try{
+            Connection conn = JdbcUtils.getConnection();
+            QueryRunner runner = new QueryRunner();
+            String sql = "select * from support where isValid = 1 and userId = ?";
+            supportEntityList = runner.query(conn, sql,new BeanListHandler<>(supportEntity.class) , userId);
+            conn.close();
+        }catch (SQLException e){
+            throw new RuntimeException(e);
+        }
+
+        return supportEntityList;
+    }
 }

src/com/hellogithub/service/projectService.java

@@ -5,8 +5,10 @@ import com.alibaba.fastjson.JSONArray;
 import com.alibaba.fastjson.JSONObject;
 import com.hellogithub.dao.categoryDao;
 import com.hellogithub.dao.projectDao;
+import com.hellogithub.dao.supportDao;
 import com.hellogithub.entity.categoryEntity;
 import com.hellogithub.entity.projectEntity;
+import com.hellogithub.entity.supportEntity;
 
 import java.util.*;
 
@@ -16,6 +18,8 @@ public class projectService {
 
     private  projectDao projectDao = new projectDao();
     private categoryDao categoryDao = new categoryDao();
+
+    private supportDao supportDao = new supportDao();
     /**
      * 按照期刊号查询
      */
@@ -186,5 +190,19 @@ public class projectService {
         }
         return JSONObject.toJSONString(projectEntityList);
     }
+    public String retProBySupport(int userId)
+    {
+        List<supportEntity> supportEntityList = supportDao.selectProject(userId);
+        List<projectEntity> projectEntityList = new ArrayList<>();
+        for(int i=0;i<supportEntityList.size();i++)
+        {
+            supportEntity supportEntity =supportEntityList.get(i);
+            projectEntity projectEntity = projectDao.selectProById(String.valueOf(supportEntity.getProjectId()));
+            categoryEntity categoryEntity = categoryDao.retNum(projectEntity.getCategoryId());
+            projectEntity.setCategoryName(categoryEntity.getCategoryName());
+            projectEntityList.add(projectEntity);
+        }
+        return JSONObject.toJSONString(projectEntityList);
+    }
 
 }

src/com/hellogithub/servlet/userDetailServlet.java

@@ -58,6 +58,7 @@ public class userDetailServlet extends HttpServlet {
             int id = userService.selectIdByName(username);
             dataMap.put("comment",commentService.selectByUserId(id));
             dataMap.put("project",projectService.retProjectByUserId(id));
+            dataMap.put("like",projectService.retProBySupport(id));
             jsonString = JSONObject.toJSONString(dataMap);
             writer.println(jsonString);
             writer.close();