采用spring boot  开发了一个多模块项目，有多个模块中都有mapper配置文件。

采用如下的方式配置，制度去到了一个模块jar包中配置文件：

　　@Bean(name = "sqlSessionFactory")    public SqlSessionFactory sqlSessionFactoryBean() {        SqlSessionFactoryBean bean = new SqlSessionFactoryBean();        bean.setDataSource(dataSource);        bean.setTypeAliasesPackage("tk.mybatis.springboot.model");        MybatisInterceptor interceptor = new MybatisInterceptor();        bean.setPlugins(new Interceptor[]{interceptor});        //添加XML目录        ResourcePatternResolver resolver = new PathMatchingResourcePatternResolver();        try {            //\com\tritrust\t\core\dict\sqlmap            //\com\tritrust\t\system\sqlmap            bean.setMapperLocations(resolver.getResources("classpath:com/tritrust/t/**/sqlmap/*.xml"));            return bean.getObject();        } catch (Exception e) {            e.printStackTrace();            throw new RuntimeException(e);        }    }

 

需要读取多个jar里面的配置需要修改配置路径为：

bean.setMapperLocations(resolver.getResources("classpath*:com/tritrust/t/**/sqlmap/*.xml"));

classpath*:就可以读取多个jar里面文件了。 查看spring core 中org.springframework.core.io.support.PathMatchingResourcePatternResolver类有如下代码：

public Resource[] getResources(String locationPattern) throws IOException {        Assert.notNull(locationPattern, "Location pattern must not be null");        if (locationPattern.startsWith("classpath*:")) {            return this.getPathMatcher().isPattern(locationPattern.substring("classpath*:".length())) ? this.findPathMatchingResources(locationPattern) : this.findAllClassPathResources(locationPattern.substring("classpath*:".length()));        } else {            int prefixEnd = locationPattern.startsWith("war:") ? locationPattern.indexOf("*/") + 1 : locationPattern.indexOf(58) + 1;            return this.getPathMatcher().isPattern(locationPattern.substring(prefixEnd)) ? this.findPathMatchingResources(locationPattern) : new Resource[]{
   this.getResourceLoader().getResource(locationPattern)};        }    }