2024.4.11

优化了node的组合条件查询和分页

src/main/java/com/hongliang/videotask/MapperProvider/NodeProvider.java

@@ -36,4 +36,19 @@ public class NodeProvider {
         //返回sql语句
         return sb.toString();
     }
+
+    public String GetTotal(Map<String,Object> condition){
+        StringBuilder sb=new StringBuilder();
+        sb.append("select count(1) from node where 1=1");
+
+        //开如拼接查询条件
+        if (condition.containsKey("nodename")){
+            sb.append(" and nodename like concat('%', #{nodename},'%')");
+        }
+
+        //……如果有其他条件，就继续
+
+        //返回sql语句
+        return sb.toString();
+    }
 }

src/main/java/com/hongliang/videotask/bean/PageResultBean.java

@@ -0,0 +1,17 @@
+package com.hongliang.videotask.bean;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+import java.util.List;
+
+@Data
+@AllArgsConstructor
+@NoArgsConstructor
+public class PageResultBean<T> {
+    private int pageNum;
+    private int pageSize;
+    private int total;
+    private List<T> list;
+}

src/main/java/com/hongliang/videotask/controller/NodeControl.java

@@ -19,7 +19,6 @@ public class NodeControl {
 
     @PostMapping("list")
     public ResponseEntity<?> GetNodeListByCondition(@RequestBody String condition){
-        System.out.println(condition);
         return ResponseEntity.ok(new Response(ResponseCode.OK,"success",
                 this.nodeService.GetNodeListByCondition(condition)));
     }

src/main/java/com/hongliang/videotask/mappers/NodeMapper.java

@@ -2,7 +2,6 @@ package com.hongliang.videotask.mappers;
 
 import com.hongliang.videotask.MapperProvider.NodeProvider;
 import com.hongliang.videotask.bean.NodeBean;
-import org.apache.ibatis.annotations.Param;
 import org.apache.ibatis.annotations.SelectProvider;
 import org.springframework.stereotype.Repository;
 
@@ -13,4 +12,7 @@ import java.util.Map;
 public interface NodeMapper {
     @SelectProvider(type= NodeProvider.class,method = "GetNodeList")
     List<NodeBean> GetNodeListByCondition(Map<String,Object> condition);
+
+    @SelectProvider(type=NodeProvider.class,method="GetTotal")
+    int GetTotal(Map<String,Object> condition);
 }

src/main/java/com/hongliang/videotask/service/NodeService.java

@@ -1,9 +1,8 @@
 package com.hongliang.videotask.service;
 
-import com.hongliang.videotask.bean.NodeBean;
-
-import java.util.List;
+import com.hongliang.videotask.bean.PageResultBean;
 
 public interface NodeService {
-    List<NodeBean> GetNodeListByCondition(String condition);
+    PageResultBean GetNodeListByCondition(String condition);
+    int GetTotal(String condition);
 }

src/main/java/com/hongliang/videotask/service/impl/NodeServiceImpl.java

@@ -1,15 +1,13 @@
 package com.hongliang.videotask.service.impl;
 
-import com.alibaba.fastjson.JSON;
-import com.alibaba.fastjson.JSONObject;
 import com.hongliang.videotask.bean.NodeBean;
+import com.hongliang.videotask.bean.PageResultBean;
 import com.hongliang.videotask.mappers.NodeMapper;
 import com.hongliang.videotask.service.NodeService;
 import com.hongliang.videotask.utils.CommonFuction;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 
-import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 
@@ -18,8 +16,19 @@ public class NodeServiceImpl implements NodeService {
     @Autowired
     private NodeMapper nodeMapper;
 
-    public List<NodeBean> GetNodeListByCondition(String condition){
+    public PageResultBean GetNodeListByCondition(String condition){
         Map<String,Object> map= CommonFuction.JsonStringToMapWithOffset(condition);
-        return this.nodeMapper.GetNodeListByCondition(map);
+        List<NodeBean> list=this.nodeMapper.GetNodeListByCondition(map);
+        PageResultBean<NodeBean> resultBean=new PageResultBean();
+        resultBean.setList(list);
+        resultBean.setPageNum(Integer.parseInt( map.get("pageNum").toString()));
+        resultBean.setPageSize(Integer.parseInt(map.get("pageSize").toString()));
+        resultBean.setTotal(GetTotal(condition));
+        return resultBean;
+    }
+
+    public int GetTotal(String condition){
+        Map<String,Object> map= CommonFuction.JsonStringToMapWithOffset(condition);
+        return this.nodeMapper.GetTotal(map);
     }
 }