SQL template file not found in case the application is embedded in spring boot jar file

[ruimo]

When I run MyBatis with Spring Boot, it fails to load SQL template file. It only occurs when I package application in a jar file (gradle bootJar).
When I trace the application with debugger, it fails the SQL template file existence check (the exists() method Line 207 of TemplateFilePathProvider class). The code checks if the file actually exists. However, the SQL template file is in Jar file, so the check fails.

http://mybatis.org/freemarker-scripting/jacoco/org.mybatis.scripting.freemarker.support/TemplateFilePathProvider.java.html

• How to create a test case : https://github.com/mybatis/mybatis-3/wiki/Unit-Test
  I have created a simple case to reproduce the problem.
  https://github.com/ruimo/sqlfilenotfound

MyBatis version

3.5.4
OpenJDK 1.8.0_202
SpringBoot 2.2.6
Ubuntu 18.04

Database vendor and version

h2 1.4.200

Test case or example project

https://github.com/ruimo/sqlfilenotfound

Steps to reproduce

$./gradlew bootJar

$java -jar build/libs/TEST_Service-1.0-SNAPSHOT.jar

Expected result

$ curl http://localhost:8888/api/customers
[]

Actual result

$ curl http://localhost:8888/api/customers
{"timestamp":"2020-05-26T11:43:13.936+0000","status":500,"error":"Internal Server Error","message":"nested exception is org.apache.ibatis.builder.BuilderException: Error invoking SqlProvider method 'public static java.lang.String org.mybatis.scripting.thymeleaf.support.TemplateFilePathProvider.provideSql(org.apache.ibatis.builder.annotation.ProviderContext)' with specify parameter 'null'. Cause: java.lang.IllegalStateException: The SQL template file not found. mapperType:[interface com.example.domainparts.sample.customer.db.CustomerMapper] mapperMethod:[public abstract java.util.List com.example.domainparts.sample.customer.db.CustomerMapper.list()] databaseId:[null]","path":"/api/customers"}

Note

The bootRun become an expected result.

$./gradlew bootRun

$ curl http://localhost:8888/api/customers
[]

[kazuki43zoo]

@ruimo Thanks for your reporting!!

I've investigated this behavior. This behavior is bug when use together with Spring Boot FatJar.
The Resources.getResourceAsFile(actualPath).exists() return false always on Spring Boot FatJar.
I will change that not call the File#exists.

[kazuki43zoo]

Hi @ruimo ,

I've fixed this and publish the 1.0.2-SNAPSHOT version on "Sonatype OSS Snapshots Repository". Please try it when you have a time!!

You should add maven repository setting and modify dependency version as follow:

repositories {
    mavenCentral()
    mavenLocal()
    maven { url "https://oss.sonatype.org/content/repositories/snapshots" } // Add this line
}

dependencies {
    // ...
    implementation "org.mybatis.scripting:mybatis-thymeleaf:1.0.2-SNAPSHOT" // Modify this line
    // ...
}

Also, I've fixed same issue on https://github.com/mybatis/freemarker-scripting .

[ruimo]

It worked like a charm! Thank you for your support.