* 엑셀 reader 작성 완료

src/main/java/com/example/springbatch/batch/ExcelRowReader.java

@@ -0,0 +1,45 @@
+package com.example.springbatch.batch;
+
+import org.apache.poi.ss.usermodel.Row;
+import org.apache.poi.ss.usermodel.Sheet;
+import org.apache.poi.ss.usermodel.Workbook;
+import org.apache.poi.ss.usermodel.WorkbookFactory;
+import org.springframework.batch.item.ItemReader;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.util.Iterator;
+
+public class ExcelRowReader implements ItemReader<Row> {
+
+    private final String filePath;
+    private Iterator<Row> rowCursor;
+
+    public ExcelRowReader(String filePath) throws IOException {
+
+        this.filePath = filePath;
+        initialize();
+    }
+
+    private void initialize() throws IOException {
+
+        FileInputStream fileInputStream = new FileInputStream(filePath);
+        Workbook workbook = WorkbookFactory.create(fileInputStream);
+        Sheet sheet = workbook.getSheetAt(0);
+        this.rowCursor = sheet.iterator();
+        // Skip header row if necessary
+        if (rowCursor.hasNext()) {
+            rowCursor.next();
+        }
+    }
+
+    @Override
+    public Row read() {
+        if (rowCursor != null && rowCursor.hasNext()) {
+            return rowCursor.next();
+        } else {
+            return null; // No more rows to read
+        }
+    }
+}

src/main/java/com/example/springbatch/batch/FourthBatch.java

@@ -47,8 +47,8 @@ public class FourthBatch {
         return new StepBuilder("fourthStep", jobRepository)
                 .<Row, AfterEntity> chunk(10, platformTransactionManager)
                 .reader(excelReader())
-                .processor(middleProcessor())
+                .processor(fourthProcessor())
-                .writer(afterWriter())
+                .writer(fourthAfterWriter())
                 .build();
     }
 
@@ -56,19 +56,20 @@ public class FourthBatch {
     public ItemReader<Row> excelReader() {
 
         try {
-            return new ExcelRowReader("path/to/your/excel/file.xlsx");
+            return new ExcelRowReader("C:\\Users\\kim\\Desktop\\yummi.xlsx");
+            //리눅스나 맥은 /User/형태로
         } catch (IOException e) {
             throw new RuntimeException(e);
         }
     }
 
     @Bean
-    public ItemProcessor<Row, AfterEntity> middleProcessor() {
+    public ItemProcessor<Row, AfterEntity> fourthProcessor() {
 
         return new ItemProcessor<Row, AfterEntity>() {
 
             @Override
-            public AfterEntity process(Row item) throws Exception {
+            public AfterEntity process(Row item) {
 
                 AfterEntity afterEntity = new AfterEntity();
                 afterEntity.setUsername(item.getCell(0).getStringCellValue());
@@ -79,7 +80,7 @@ public class FourthBatch {
     }
 
     @Bean
-    public RepositoryItemWriter<AfterEntity> afterWriter() {
+    public RepositoryItemWriter<AfterEntity> fourthAfterWriter() {
 
         return new RepositoryItemWriterBuilder<AfterEntity>()
                 .repository(afterRepository)

src/main/java/com/example/springbatch/controller/MainController.java

@@ -49,5 +49,17 @@ public class MainController {
         return "ok";
     }
 
+    @GetMapping("/fourth")
+    private String fourthApi(@RequestParam("value") String value) throws Exception {
+
+        JobParameters jobParameters = new JobParametersBuilder()
+                .addString("date", value)
+                .toJobParameters();
+
+        jobLauncher.run(jobRegistry.getJob("fourthJob"), jobParameters);
+
+        return "ok";
+    }
+
     //https://docs.spring.io/spring-batch/reference/job/configuring-launcher.html
 }