采用spring boot 開發了一個多模塊項目，有多個模塊中都有mapper配置文件。

采用如下的方式配置，制度去到了一個模塊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目錄
        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);
        }
    }

需要讀取多個jar裏面的配置需要修改配置路徑為：

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

classpath*:就可以讀取多個jar裏面文件了。

查看spring core 中org.springframework.core.io.support.PathMatchingResourcePatternResolver類有如下代碼：

    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)};
        }
    }

Spring boot + mybatis 只讀取到一個jar包中的mapper配置文件