Background: spring + mybatis + oracle data source Requirement: support postgreSQL data source exchange with minimum code change Example: Current: controllerA -> ServiceA -> daoA -> A.xml (oracle) Now need: we can configure use oracele/postgreSQL database source If configure use postgreSQL: controllerA -> ServiceA -> daoA -> A.xml (postgreSQL) More: Same controllerA、ServiceA for same business logic Differenct DaoA、A.xml for oracle
Tag: mybatis
I can’t put a HashMap object in the MyBatis parameter
I’m trying use a HashMap object to look up ids and passwords in database, but I can’t. I can only get error message as follows: I set my MyBatis mapper as follows: And, I think it’s ok with my controller and dao, but I’ll attach it. I checked the HashMap variable in the controller and dao correctly print their items.
Using HashMap dynamically for parameter mapping in mybatis
Okay so this is kinda re-posting of this question Inserting HashMap Values to a table using ibatis (but I am looking for a different way – the answer wont work for me).. DB1GetStudentDataMapper.xml (this queries to one database) DB2InsertStudentMapper.xml (this queries to different database) DB2InsertStudentMapper.java StudentDataProcess.java Note: Just for example I used 4 columns – I have some 150+ columns
Error parsing SQL Mapper Configuration in mybatis
I am using mybatis framework in a servlet and the mybatis-config.xml file is unable to find the Student_mapper class.I applied all the paths including the package name and excluding it and also used the element in my mybatis-config.xml but it doesn’t work.I am still getting the same error. Here’s my mybatis-config.xml file Here’s my Student_mapper interface Answer The mapper class
Retrieving a list of values across databases with mybatis
I have 2 Java POJO files The database has a FK mapping between FilterVariable.id and ValueVariable.valueListId. Inserts into the table work perfectly, i have a single transaction that inserts into both tables separately. While retrieving the data using select and join, I only receive the first row from the table in the database. Database Tables: The method in the interface
MyBatis oracle insert new row always return wrong primary id value
Try to get the primary id after inserting a new row to oracle DB Here is the java call New data/row can be inserted into DB with no issue with correct primary key/id. But myID is always returned as 1(supposed to be 8971). How can I get the correct value. Thanks in advcance. version: Answer Your insert returns 1 on
With MyBatis. How can I map two different records in one table, then construct a single query result when joining that table?
The definition of my query result entity has two fields, origin and destination, which are both Location type, and I’m trying to fetch the information in location table with JOINS.Here are the resultMap definition and SQL: SQL: It is supposed that the origin and destination are different records, however I found that origin and destination turned out to be same…
Is there anyway to convert json to java bean through mybatis mapper?
In case I have a mysql join query result set, it is in json format, like this: and the mybatis mapper I can’t access this mysql instance directly, I can only export query result in json format through some “proxy platform”, is there anyway convert the json to org.example.mybatis.dto.User through the existing mybatis mapper easily? PS: I tried to use
How to not persist sqlSession.selectOne returned value?
My goal is to not persist the SqlSession.selectOne returned value. The problem is, if you do a sqlSession.selectOne (using an API endpoint) and then you edit the database directly for example using the MySQL workbench. After you edit the database and do another API endpoint request, the returned value will not change. This is how you recreate the problem: Do
I have some problems with mybatis, when I query presto data [closed]
Closed. This question needs debugging details. It is not currently accepting answers. Edit the question to include desired behavior, a specific problem or error, and the shortest code necessary to reproduce the problem. This will help others answer the question. Closed 3 years ago. Improve this question When I query presto data with mybatis, It shows: “com.facebook.presto.jdbc.NotImplementedException: Method Connection.prepareStatement is