'新增导出功能'

src/main/java/net/tccn/base/MetaRender.java

@@ -0,0 +1,58 @@
+package net.tccn.base;
+
+import com.lxyer.excel.poi.ExcelKit;
+import org.apache.poi.ss.usermodel.Workbook;
+import org.redkale.convert.Convert;
+import org.redkale.net.http.*;
+import org.redkale.util.AnyValue;
+
+import java.io.File;
+import java.io.FileOutputStream;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * @author: liangxianyou
+ */
+public class MetaRender implements HttpRender<HttpScope> {
+    @Override
+    public void init(HttpContext context, AnyValue config) {
+
+    }
+
+    @Override
+    public <V extends HttpScope> void renderTo(HttpRequest request, HttpResponse response, Convert convert, V scope) {
+        Map<String, Object> attr = scope.getAttributes();
+        if ("excel".equals(scope.getReferid())) {
+            List list = (List) attr.get("data");
+            Kv heads = (Kv) attr.get("heads");
+            String fileName = (String) attr.get("fileName");
+
+            try {
+                Workbook workbook = ExcelKit.exportExcel(list, heads);
+
+                File file = new File(String.format("tmp/%s.xls", fileName));
+                file.getParentFile().mkdirs();
+                if (file.exists()) file.delete();
+
+                FileOutputStream fos = new FileOutputStream(file);
+                workbook.write(fos);
+                try {
+                    fos.close();
+                    workbook.close();
+                } catch (Exception e) {
+                    e.printStackTrace();
+                }
+                response.finish(file);
+            } catch (Exception e) {
+                e.printStackTrace();
+            }
+        }
+    }
+
+    @Override
+    public Class<HttpScope> getType() {
+        return HttpScope.class;
+    }
+
+}