java.sql.Statement是Java JDBC下执行SQL语句的一种原生方式,执行语句时需要通过拼接来执行 若拼接的语句没有经过过滤,将出现SQL注入漏洞 事例代码: importjava.sql.Connection;importjava.sql.DriverManager;importjava.sql.ResultSet;importjava.sql.SQLException;
而使用的驱动包是:com.mysql.cj.jdbc.Driver 自然就出现CLIENT_PLUGIN_AUTH is required错误了。 解决方案: 因为使用的MySQL不可改,因此采用更改依赖和驱动包的方法。 依赖改为: <dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId><version>5.1.35</version></dependency> 驱动...
Calcite是一个sql引擎,通常使用是使用对应的工具包例如calcite-redis,calcite-mongodb用于异构数据源sql查询支持。sql解析只是其中一个部分,下面的代码仅仅是解析sql部分的demo。 sql解析示例 StringsqlStr="SELECT\n"+"\tsu.dept_id `deptId`,\n"+"\tsu.user_id,\n"+"\tsr.role_id,\n"+"\tsu.user_name,...
又名大狼狗代码生成器,基于SpringBoot2+Freemarker的JAVA代码生成器,以释放双手为目的,支持mysql/oracle/pgsql三大数据库, 用DDL-SQL语句生成JPA/JdbcTemplate/Mybatis/MybatisPlus/BeetlSQL等相关代码. - hecunsheng/SpringBootCodeGenerator
in sql server An invalid character was found in the mail header: '@'. An operation on a socket could not be performed because the system lacked sufficient buffer space or because a queue was full. An Unable to write data to the transport connectionestablished connection was aborted by t...
SQLALCHEMY_POOL_RECYCLE=3600 # Whether to print SQL, default is false. SQLALCHEMY_ECHO=false # Maximum number of connections to the database # Default is 100 # # Reference: https://www.postgresql.org/docs/current/runtime-config-connection.html#GUC-MAX-CONNECTIONS POSTGRES_MAX_CONNE...
Java.Security.Acl Java.Security.Cert Java.Security.Interfaces Java.Security.Spec Java.Sql Java.Sql BatchUpdateException ClientInfoStatus Connection DatabaseMetaData DataTruncation Date DriverManager DriverPropertyInfo IArray IBlob ICallableStatement IClob IConnection IDatabaseMetaData IDriver IDriverExtensions ...
A simple and easy to use Web Report System for java.EasyReport是一个简单易用的Web报表工具,它的主要功能是把SQL语句查询出的行列结构转换成HTML表格(Table),并支持表格的跨行(RowSpan)与跨列(ColSpan)。同时它还支持报表Excel导出、图表显示及固定表头与左边列的功能
我同样在项目中遇到这样的问题,所以借助DSL的思想对SQL做了一些封装。把SQL实现为java版的DSL,这样不但不会失去SQL的简单易懂的特性,而且本来SQL就是一门DSL,实现起来不会太困难。 我实现的QuerySQL: int id = 0; String name = "Heis"; String gender = "male"; ...
For example, the queryldapsearch -b "dc=mysuffix" "(attr=abc)"is translated into the following SQL query: SELECT * FROM mytable WHERE (UPPER(attr)='ABC') By default, this type of query is not indexed. Queries of this nature can therefore have a substantial performance impact. ...