UserExample example = new UserExample(); UserExample.Criteria criteria = example.createCriteria(); 四、查询用户数量 long count = UserMapper.countByExample(example); 类似于:select count(*) from user 五、where条件查询或多条件查询 example.setOrderByClause("age asc");//升序 example.setDistinct(fa...
UserExample example = new UserExample(); UserExample.Criteria criteria = example.createCriteria(); // 查询用户总量 long count = UserMapper.countByExample(example); // 类似于:select count(*) from user where条件查询或多条件查询 example.setOrderByClause(“age asc"); //升序 example.setDistinct(...
Spring Cloud：一个基于 Spring Boot 的微服务架构开发框架。它提供了一套完整的微服务解决方案，包括服务...
<selectid="selectByExampleWithRowbounds"parameterType="com.data.pojo.ProductExample"resultMap="BaseResultMap">select<iftest="distinct">distinct</if><includerefid="Base_Column_List"/>from product<iftest="_parameter != null"><includerefid="Example_Where_Clause"/></if><iftest="orderByClause != n...
本章介绍 Web 后端开发中数据持久化技术 TKMyBatis。 TKMyBatis简介 TKMybatis 是基于 Mybatis 框架开发的一个工具,内部实现了对单表的基本数据操作,只需要简单继承 TKMybatis 提供的接口,就能够实现无需编写任何 sql 即能完成单表操作。 下面简单介绍下 MyBatis , MyBatis 是一款优秀的持久层框架,它支持自定...
publicclassListSplitExample{publicstaticvoidmain(String[]args){List<User>users=generateLargeUserList();intchunkSize=1000;// 使用Stream API进行分片List<List<User>>userChunks=splitListByStream(users,chunkSize);// 并行处理每个分片userChunks.parallelStream().forEach(chunk->{processUsersInChunk(chunk);})...
enableCountByExample:Count语句中加入where条件查询,默认true开启 enableUpdateByExample:Update语句中加入where条件查询,默认true开启 enableDeleteByExample:Delete语句中加入where条件查询,默认true开启 enableSelectByExample:Select多条语句中加入where条件查询,默认true开启 ...
For example: - Signed by "CN="Signer"" Digest algorithm: SHA-1 (disabled) Signature algorithm: SHA1withRSA (disabled), 2048-bit key WARNING: The jar will be treated as unsigned, because it is signed with a weak algorithm that is now disabled by the security property: jdk.jar.disabledAlg...
@Select("select * from users") List<User>findAll();//int saveUser(User user);///int updateUser(User user);///int deleteUser(Integer id);///User findById(Integer id);///List<User> findByName(String name);///int findTotal();///int saveInsertUser(User user);} 测试结果:...
entry in the // boolean array to true) boolean[] keyUsage = {true}; xcs.setKeyUsage(keyUsage); // select only certificates with a subjectAltName of // 'alice@xyz.example.com' (1 is the integer value of // an RFC822Name) xcs.addSubjectAlternativeName(1, "alice@xyz.example.com")...