after Sping Boot integrates Mybatis, set console output to execute SQL logging: level: com...dao: debug this package is full of mapper interfaces generated by mybatis generator, and the console can output SQL. in addition, I have defined a gene...
< H2 > as in the question, we want to define a global method to get any random data, but we can t find out how to use parameters in the global method. < H2 > official documentation does not indicate how to use it. BaseDao.java ** * * List&...
is there a plug-in that can force the maximum length of each line of the mybatis mapping file to be checked when maven is packaged? ...
the error is as follows: 2018-10-30 18:42:07.667 ERROR 21904 --- [bio-8080-exec-1] o.s.boot.web.support.ErrorPageFilter : Forwarding to error page from request [ getUserById] due to exception [Invalid bound statement (not found): com.sunlei.springb...
jpa uses findby query. If the parameter is empty, it is not used as a condition. What can I do? this function is similar to where < if test= xx! = null > column = xx < if > of mybatis. for example, I have a findByNameAndAge (String name,Integer...
there was a character type problem when using mybatisGenerator to map oracle database tables. the fields represented by number (122.3) in oracle may be converted to bigDecimal , or to Short . In theory, should all be bigDecimal ? oracle (table i...
1. The current table structure partition is . the main table is an and contains the necessary underlying data. from the table: B, c, d, e, etc. related tables: ab, ac, ad, ae, etc. now the data sent from the front end is a string of json string...
when null is passed in the front end, we are very confused when it is clearly null,. Why is the if condition judgment invalid in the xml file of mybatis? < if test= "name! = null and name! = " > identity_id = -sharp{idcard,javaType=String,jdbcTyp...
Hello, everyone mybatis ...
needs to use the returned result of an attribute value corresponding to id->. Currently, you can only return List, with two columns and convert it using Stream. Does Mybatis natively support this feature? select id, sum(money) ...
how IDEA formats SQL? in MyBatis s mapper XML ...
query the top N users with the largest number of courses, and the number of courses should also be queried the corresponding sql is as follows: <select id="getUserWithMostFans" resultMap=""> SELECT t.userId,t.selectNum ...
this is xml <resultMap id="result_report_QDHW_05" class="com.sunyard.csr.vo.Report_QDHW_05"> <result property="TIME_KEY" column="TIME_KEY" > <result property="...
Goods.java @Getter @Setter public class Goods { private Integer id; private String url; private Integer groupId; private Integer sourceId; private Integer userId; private Date createTime; private Date updateTime; } G...
problem description When webService passes special characters such as , , ", etc., it is automatically escaped by the frame to . what result do you expect? What is the error message actually seen? is there any way to avoid the problem of automati...
I m going to go back to mybatis and add the useGeneratedKeys= "true " keyProperty= "id " keyColumn= "id " attributes to id, but doesn t feel much use . Has anyone ever returned to success in this way? description: mysql used by the database. ...
Design the rest interface. For the update,add,delete operation, it is said on the Internet that the modified result should be returned to the caller, and the caller can directly take advantage of the modified result. So whether the return result returns...
when searching with Mybatis, you can query all conditions dynamically. for example: <select id="selectByModelVague" parameterType="com.test.model.User" resultMap="BaseResultMap"> select <include refid=&qu...
@ Select ( "SELECT FROM users ") @ Results ({@ Result (property = "userSex ", column = "user_sex ", javaType = UserSexEnum.class), @ Result (property = "nickName ", column = "nick_name ")} List < UserEntity > getAll (); @ Select ( "SELECT FROM use...
can mybatis use column annotations on the attributes of the entity class to map the result set to the entity class as jpa does? ...