后端编写分页查询

book-product/src/main/java/com/bookstore/bookmall/product/controller/AttrController.java

@@ -34,7 +34,7 @@ public class AttrController {
     /**
      * 列表
      */
-    @RequestMapping("/list")
+    @RequestMapping("/list/{catelogId}")
     //@RequiresPermissions("product:attr:list")
     public R list(@RequestParam Map<String, Object> params){
         PageUtils page = attrService.queryPage(params);

book-product/src/main/java/com/bookstore/bookmall/product/controller/AttrGroupController.java

@@ -34,11 +34,13 @@ public class AttrGroupController {
     /**
      * 列表
      */
-    @RequestMapping("/list")
+    @RequestMapping("/list/{catelogId}")
     //@RequiresPermissions("product:attrgroup:list")
-    public R list(@RequestParam Map<String, Object> params){
-        PageUtils page = attrGroupService.queryPage(params);
+    public R list(@RequestParam Map<String, Object> params,
+                  @PathVariable("catelogId") Long catelogId){
+        //PageUtils page = attrGroupService.queryPage(params);
 
+        PageUtils page = attrGroupService.querypage(params, catelogId;
         return R.ok().put("page", page);
     }
 

book-product/src/main/java/com/bookstore/bookmall/product/service/AttrGroupService.java

@@ -16,5 +16,7 @@ import java.util.Map;
 public interface AttrGroupService extends IService<AttrGroupEntity> {
 
     PageUtils queryPage(Map<String, Object> params);
+
+    PageUtils querypage(Map<String, Object> params, Long catelogId);
 }
 

book-product/src/main/java/com/bookstore/bookmall/product/service/AttrService.java

@@ -16,5 +16,6 @@ import java.util.Map;
 public interface AttrService extends IService<AttrEntity> {
 
     PageUtils queryPage(Map<String, Object> params);
+
 }
 

book-product/src/main/java/com/bookstore/bookmall/product/service/impl/AttrGroupServiceImpl.java

@@ -1,5 +1,6 @@
 package com.bookstore.bookmall.product.service.impl;
 
+import com.alibaba.nacos.shaded.io.grpc.netty.shaded.io.netty.util.internal.StringUtil;
 import org.springframework.stereotype.Service;
 import java.util.Map;
 import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
@@ -26,4 +27,29 @@ public class AttrGroupServiceImpl extends ServiceImpl<AttrGroupDao, AttrGroupEnt
         return new PageUtils(page);
     }
 
+    @Override
+    public PageUtils querypage(Map<String, Object> params, Long catelogId) {
+        if (catelogId == 0) {
+            IPage<AttrGroupEntity> page = this.page(
+                    new Query<AttrGroupEntity>().getPage(params),
+                    new QueryWrapper<AttrGroupEntity>());
+            return new PageUtils(page);
+        }else {
+            //多字段模糊检索
+            //select * from pms_attr_group where catelog_id=? and (attr_group_id=key or attr_group_name like %key%  or descript=key)
+            String key = (String) params.get("key");
+            //数据库chax
+            QueryWrapper<AttrGroupEntity> wrapper = new QueryWrapper<AttrGroupEntity>().eq("catelog_id", catelogId);
+            if (!StringUtil.isNullOrEmpty(key)){
+                //将wrapper构造以后用这个查询
+                wrapper.and((obj)->{
+                    obj.eq("attr_group_id",key).or().like("attr_group_name", key)
+                });
+            }
+            IPage<AttrGroupEntity> page = this.page(
+                    new Query<AttrGroupEntity>().getPage(params), wrapper);
+            return new PageUtils(page)
+        }
+    }
+
 }

book-product/src/main/java/com/bookstore/bookmall/product/service/impl/AttrServiceImpl.java

@@ -17,7 +17,7 @@ import com.bookstore.bookmall.product.service.AttrService;
 public class AttrServiceImpl extends ServiceImpl<AttrDao, AttrEntity> implements AttrService {
 
     @Override
-    public PageUtils queryPage(Map<String, Object> params) {
+    public PageUtils queryPage(Map<String, Object> params, Long catelogId) {
         IPage<AttrEntity> page = this.page(
                 new Query<AttrEntity>().getPage(params),
                 new QueryWrapper<AttrEntity>()