1. 通过ID集合获取用户列表

luoo_user/src/main/java/com/luoo/user/controller/UserController.java

@@ -1,19 +1,8 @@
 package com.luoo.user.controller;
 
-import java.io.IOException;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-import java.util.concurrent.TimeUnit;
-
-import javax.servlet.http.HttpServletResponse;
-
-import org.springframework.beans.BeanUtils;
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.data.domain.Page;
-import org.springframework.data.redis.core.RedisTemplate;
-import org.springframework.web.bind.annotation.*;
-
+import api.PageResult;
+import api.Result;
+import api.StatusCode;
 import com.luoo.user.annotation.GlobalInterceptor;
 import com.luoo.user.annotation.VerifyParam;
 import com.luoo.user.constants.Constants;
@@ -23,15 +12,23 @@ import com.luoo.user.enums.VerifyRegexEnum;
 import com.luoo.user.pojo.User;
 import com.luoo.user.service.UserService;
 import com.luoo.user.util.NickNameUtil;
-
-import api.PageResult;
-import api.Result;
-import api.StatusCode;
 import io.swagger.annotations.Api;
 import io.swagger.annotations.ApiOperation;
+import org.springframework.beans.BeanUtils;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.data.domain.Page;
+import org.springframework.data.redis.core.RedisTemplate;
+import org.springframework.web.bind.annotation.*;
 import util.IdWorker;
 import util.JwtUtil;
 
+import javax.servlet.http.HttpServletResponse;
+import java.io.IOException;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.TimeUnit;
+
 /**
  * 控制器层
  * 
@@ -268,4 +265,10 @@ public class UserController {
 		return Result.success();
 	}
 
+	@DeleteMapping("/{findUserByIds}")
+	public List<User> findUserByIds(@RequestBody List<String> userId){
+		List<User> byIds = userService.findByIds(userId);
+		return byIds;
+	}
+
 }

luoo_user/src/main/java/com/luoo/user/dao/UserDao.java

@@ -1,12 +1,13 @@
 package com.luoo.user.dao;
 
+import com.luoo.user.pojo.User;
 import org.springframework.data.jpa.repository.JpaRepository;
 import org.springframework.data.jpa.repository.JpaSpecificationExecutor;
-
-import com.luoo.user.pojo.User;
 import org.springframework.data.jpa.repository.Modifying;
 import org.springframework.data.jpa.repository.Query;
 
+import java.util.List;
+
 /**
  * 数据访问接口
  * @author Administrator
@@ -26,4 +27,8 @@ public interface UserDao extends JpaRepository<User,String>,JpaSpecificationExec
 
 
     public User findByLoginname(String loginname);
+
+    @Query("SELECT * FROM tb_user m WHERE m.id IN ?1")
+    List<User> findUserByIds(List<String> ids);
+
 }

luoo_user/src/main/java/com/luoo/user/service/UserService.java

@@ -1,17 +1,11 @@
 package com.luoo.user.service;
 
-import java.util.*;
-import java.util.concurrent.TimeUnit;
-
-import javax.persistence.criteria.CriteriaBuilder;
-import javax.persistence.criteria.CriteriaQuery;
-import javax.persistence.criteria.Predicate;
-import javax.persistence.criteria.Root;
-import javax.servlet.http.HttpServletRequest;
-
+import com.luoo.user.constants.Constants;
+import com.luoo.user.dao.UserDao;
+import com.luoo.user.pojo.User;
+import com.luoo.user.util.NickNameUtil;
 import org.apache.commons.lang3.RandomStringUtils;
 import org.springframework.amqp.rabbit.core.RabbitTemplate;
-import org.springframework.beans.BeanUtils;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.data.domain.Page;
 import org.springframework.data.domain.PageRequest;
@@ -19,20 +13,18 @@ import org.springframework.data.jpa.domain.Specification;
 import org.springframework.data.redis.core.RedisTemplate;
 import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
 import org.springframework.stereotype.Service;
-
 import org.springframework.transaction.annotation.Transactional;
 import util.IdWorker;
-
-import com.apifan.common.random.RandomSource;
-import com.luoo.user.constants.Constants;
-import com.luoo.user.dao.UserDao;
-import com.luoo.user.dto.response.UserRespDTO;
-import com.luoo.user.enumerate.Gender;
-import com.luoo.user.pojo.User;
-import com.luoo.user.util.NickNameUtil;
-
 import util.JwtUtil;
 
+import javax.persistence.criteria.CriteriaBuilder;
+import javax.persistence.criteria.CriteriaQuery;
+import javax.persistence.criteria.Predicate;
+import javax.persistence.criteria.Root;
+import javax.servlet.http.HttpServletRequest;
+import java.util.*;
+import java.util.concurrent.TimeUnit;
+
 /**
  * 服务层
  * 
@@ -119,6 +111,11 @@ public class UserService {
 		return userDao.findById(id).get();
 	}
 
+
+	public List<User> findByIds(List<String> ids) {
+		return userDao.findUserByIds(ids);
+	}
+
 	/**
 	 * 增加
 	 *