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update 使用 in 优化 or 提升索引命中率

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疯狂的狮子li 2022-03-14 15:58:27 +08:00
parent 2285a94958
commit e480f616e0
2 changed files with 9 additions and 6 deletions
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9
ruoyi-system/src/main/java/com/ruoyi/system/service/impl/SysDataScopeServiceImpl.java
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@ -44,11 +44,14 @@ public class SysDataScopeServiceImpl implements ISysDataScopeService {
@Override @Override
public String getDeptAndChild(Long deptId) { public String getDeptAndChild(Long deptId) {
List<SysDept> deptList = deptMapper.selectList(new LambdaQueryWrapper<SysDept>()
.select(SysDept::getDeptId)
.apply(DataBaseHelper.findInSet(deptId, "ancestors")));
List<Long> ids = deptList.stream().map(SysDept::getDeptId).collect(Collectors.toList());
ids.add(deptId);
List<SysDept> list = deptMapper.selectList(new LambdaQueryWrapper<SysDept>() List<SysDept> list = deptMapper.selectList(new LambdaQueryWrapper<SysDept>()
.select(SysDept::getDeptId) .select(SysDept::getDeptId)
.eq(SysDept::getDeptId, deptId) .in(SysDept::getDeptId, ids));
.or()
.apply(DataBaseHelper.findInSet(deptId, "ancestors")));
if (CollUtil.isNotEmpty(list)) { if (CollUtil.isNotEmpty(list)) {
return list.stream().map(d -> Convert.toStr(d.getDeptId())).collect(Collectors.joining(",")); return list.stream().map(d -> Convert.toStr(d.getDeptId())).collect(Collectors.joining(","));
} }

6
ruoyi-system/src/main/java/com/ruoyi/system/service/impl/SysUserServiceImpl.java
View File

@ -82,9 +82,9 @@ public class SysUserServiceImpl implements ISysUserService {
List<SysDept> deptList = deptMapper.selectList(new LambdaQueryWrapper<SysDept>() List<SysDept> deptList = deptMapper.selectList(new LambdaQueryWrapper<SysDept>()
.select(SysDept::getDeptId) .select(SysDept::getDeptId)
.apply(DataBaseHelper.findInSet(user.getDeptId(), "ancestors"))); .apply(DataBaseHelper.findInSet(user.getDeptId(), "ancestors")));
w.eq("u.dept_id", user.getDeptId()) List<Long> ids = deptList.stream().map(SysDept::getDeptId).collect(Collectors.toList());
.or() ids.add(user.getDeptId());
.in("u.dept_id", deptList.stream().map(SysDept::getDeptId).collect(Collectors.toList())); w.in("u.dept_id", ids);
}); });
return wrapper; return wrapper;
} }