tags: Java
SELECT id,version,new String("`name`"),`type`,create_time,last_used_time,code,source_code,card_url,small_logo_url,big_logo_url,params FROM lib_express_company WHERE id = ?
The name field in the above code producednew String, Because name is a keyword in sql, you need to add `to the keyword to make it a column name (such as: `name` ,Note that this is not a single quote', it is in1`Sign on the left)
Can use annotations@Column(name = "`name`")
1, to achieve interception interfaces Mybatis provides an interface to intercept, by implementing this interface, with springMVC configuration, sql complete interception. 2, xml configuration Find myb...
1. Return the result with resutlfype to accept: 2、 Mybatis-plus adds the following configuration:...
When Mybatis dynamic SQL generates query SQL, the primary key id condition constructed by lambda expression, the field alias AS keyword appears in the query condition after where, which causes an exce...
1. Common SQL query 2. Multi -field query The above is the specific implementation of SQL....
1. Why do you want to write a single table SQL automatically generated? When we use Mybatis for dao layer development, most of the operations on a single table are the same. Every time we write the sa...
First, selectable insert data insertSelective The running sql statement is Second multiple conditional selectable query This complex prediction condition above is added to n.CITY_NO, n.SUBSIDY_TYPE, n...
Compared with mybatis automatically generated mysql code, the main difference is 1. Add sqlserver dependency to pom file (you need to download and install it yourself, it seems that the new version of...
Learning official website http://www.mybatis.org/generator/ Plugin with pagination Create a simple maven project Create an mbg.xml file under the src/main/java package Configure the plug-ins needed to...
Mybatis-Plus BaseMapper automatically generates SQL and MapperProxy table of Contents Spring+Mybatis + Mybatis-Plus custom XML-free sql generation and MapperProxy proxy generation Backgr...