MongoTemplate

 //条件查询@GetMapping("findUser")public void findUserList() {Query query = new Query(Criteria.where("name").is("zhang3").and("age").is(33));List<User> users = mongoTemplate.find(query, User.class);users.forEach(System.out::println);}//条件模糊查询@GetMapping("findUserLike")public void findUserLike() {String name = "ang";String regex = String.format("%s%s%s", "^.*", name, ".*$");Pattern pattern = Pattern.compile(regex,Pattern.CASE_INSENSITIVE);Query query = new Query(Criteria.where("name").regex(pattern));List<User> users = mongoTemplate.find(query, User.class);users.forEach(System.out::println);}//条件模糊分页查询@GetMapping("findUserPage")public void findUserPage() {//0定义分页参数int pageNo = 1;int pageSize = 10;//1设置筛选条件String name = "ang";String regex = String.format("%s%s%s", "^.*", name, ".*$");Pattern pattern = Pattern.compile(regex,Pattern.CASE_INSENSITIVE);Query query = new Query(Criteria.where("name").regex(pattern));//2查询总记录数totallong total = mongoTemplate.count(query, User.class);//3设置分页条件query.skip((pageNo-1)*pageSize).limit(pageSize);List<User> users = mongoTemplate.find(query, User.class);System.out.println("total = " + total);users.forEach(System.out::println);}//修改@GetMapping("update")public void updateUser() {User user = mongoTemplate.findById("5ffbfa2ac290f356edf9b5aa", User.class);user.setName("test_1");user.setAge(25);user.setEmail("493220990@qq.com");Query query = new Query(Criteria.where("_id").is(user.getId()));Update update = new Update();update.set("name", user.getName());update.set("age", user.getAge());update.set("email", user.getEmail());UpdateResult result = mongoTemplate.upsert(query, update, User.class);long count = result.getModifiedCount();System.out.println(count);}

MongoRepository

@GetMapping("create")public void createUser() {User user = new User();user.setAge(20);user.setName("张三");user.setEmail("3332200@qq.com");User user1 = userRepository.save(user);System.out.println("user1 = " + user1);}//查询所有@GetMapping("findAll")public void findUser() {List<User> users = userRepository.findAll();users.forEach(System.out::println);}//根据id查询@GetMapping("findId")public void getById() {User user = userRepository.findById("64b4a856a2225f220ec3fa0f").get();System.out.println("user = " + user);}//条件查询@GetMapping("findUser")public void findUserList() {User user = new User();user.setName("张三");user.setAge(20);Example<User> example = Example.of(user);List<User> users = userRepository.findAll(example);users.forEach(System.out::println);}//条件模糊查询@GetMapping("findUserLike")public void findUserLike() {//查询条件User user = new User();user.setName("三");//模板构造器ExampleMatcher matcher = ExampleMatcher.matching().withStringMatcher(ExampleMatcher.StringMatcher.CONTAINING).withIgnoreCase(true);//查询条件模板Example<User> example = Example.of(user,matcher);List<User> users = userRepository.findAll(example);users.forEach(System.out::println);}//条件模糊分页查询@GetMapping("findUserPage")public void findUserPage() {//创建排序对象Sort sort = Sort.by(Sort.Direction.DESC,"age");//创建分页对象  第一页从0开始Pageable pageable = PageRequest.of(0,2,sort);//查询条件User user = new User();user.setName("三");//模板构造器ExampleMatcher matcher = ExampleMatcher.matching().withStringMatcher(ExampleMatcher.StringMatcher.CONTAINING).withIgnoreCase(true);//查询条件模板Example<User> example = Example.of(user,matcher);Page<User> userPage = userRepository.findAll(example, pageable);userPage.getContent().forEach(System.out::println);System.out.println("userPage.getTotalElements() = " + userPage.getTotalElements());}//修改@GetMapping("update")public void updateUser() {User user = userRepository.findById("60b8d57ed539ed5b124942de").get();user.setName("张三_1");user.setAge(25);user.setEmail("883220990@qq.com");User save = userRepository.save(user);System.out.println(save);}//删除操作@GetMapping("delete")public void delete() {userRepository.deleteById("60b8d57ed539ed5b124942de");}@GetMapping("testMethod1")public void testMethod1() {List<User> users = userRepository.getByNameAndAge("张三",20);users.forEach(System.out::println);}@GetMapping("testMethod2")public void testMethod2() {List<User> users = userRepository.getByNameLike("三");users.forEach(System.out::println);