fix：【infra 基础设施】LocalFileClient 读取不到文件（getContent）时，返回 null 而不是抛出异常 https://github.com/YunaiV/ruoyi-vue-pro/issues/929

yudao-module-infra/src/test/java/cn/iocoder/yudao/module/infra/framework/file/core/local/LocalFileClientTest.java

@@ -7,6 +7,8 @@ import cn.iocoder.yudao.module.infra.framework.file.core.client.local.LocalFileC
 import org.junit.jupiter.api.Disabled;
 import org.junit.jupiter.api.Test;
 
+import static cn.iocoder.yudao.framework.test.core.util.RandomUtils.randomString;
+
 public class LocalFileClientTest {
 
     @Test
@@ -26,4 +28,18 @@ public class LocalFileClientTest {
         client.delete(path);
     }
 
+    @Test
+    @Disabled
+    public void testGetContent_notFound() {
+        // 创建客户端
+        LocalFileClientConfig config = new LocalFileClientConfig();
+        config.setDomain("http://127.0.0.1:48080");
+        config.setBasePath("/Users/yunai/file_test");
+        LocalFileClient client = new LocalFileClient(0L, config);
+        client.init();
+        // 上传文件
+        byte[] content = client.getContent(randomString());
+        System.out.println();
+    }
+
 }