Pull request #50: REPORT-50982 保存模板至数据库后，读取带参数面板的报表会报错空指针，不带参数面板报表可以读取成功

Merge in PG/plugin-report-doc-demo from ~PENGDA/plugin-report-doc-demo:release/10.0 to release/10.0

* commit '283f40f697b4ad0e5d7fe033910407d8d812c39a':
  REPORT-50982 保存模板至数据库后，读取带参数面板的报表会报错空指针，不带参数面板报表可以读取成功

src/main/java/com/fr/demo/NewReadFrmFromDatabase.java

@@ -0,0 +1,70 @@
+package com.fr.demo;
+
+import com.fr.data.core.db.DBUtils;
+import com.fr.web.weblet.DBFormlet;
+import com.fr.form.main.Form;
+import java.sql.SQLException;
+import javax.servlet.http.HttpServletRequest;
+import com.fr.log.FineLoggerFactory;
+import java.io.InputStream;
+import java.sql.Blob;
+import java.sql.Connection;
+import java.sql.DriverManager;
+import java.sql.ResultSet;
+import java.sql.Statement;
+import java.util.Map;
+
+
+
+public class NewReadFrmFromDatabase extends DBFormlet {
+
+    @Override
+    public Form createForm(HttpServletRequest reportletRequest) {
+        String name = reportletRequest.getParameter("reportname");
+        return createForm(name);
+    }
+
+    @Override
+    public Form createForm(String reportName) {
+        Form form = new Form();
+        Connection connection = null;
+        try {
+            connection = getConnection();
+            // 从数据库中读模板
+            String sql = "select frm from report where frmname = '" + reportName
+                    + "'";
+            Statement smt = connection.createStatement();
+            ResultSet rs = smt.executeQuery(sql);
+            while (rs.next()) {
+                Blob blob = rs.getBlob(1);
+                FineLoggerFactory.getLogger().info(blob.toString());
+                InputStream ins = blob.getBinaryStream();
+                form.readStream(ins);
+                return form;
+            }
+        } catch (Exception e) {
+            e.printStackTrace();
+        }finally {
+            DBUtils.closeConnection(connection);
+        }
+
+        return null;
+    }
+
+    private static Connection getConnection() throws ClassNotFoundException, SQLException {
+        // 定义数据连接(根据你实际数据库信息进行修改)
+        String driver = "com.mysql.jdbc.Driver";
+        String url = "jdbc:mysql://localhost:3306/test";
+        String user = "root";
+        String pass = "123456";
+        Class.forName(driver);
+        Connection conn = DriverManager.getConnection(url, user, pass);
+        return conn;
+    }
+
+    @Override
+    public void setParameterMap(Map<String, Object> arg0) {
+        // TODO Auto-generated method stub
+
+    }
+}

src/main/java/com/fr/demo/ReadfrmFromDatabase.java

@@ -31,7 +31,7 @@ public class ReadfrmFromDatabase extends Formlet {
             Class.forName(driver);
             Connection conn = DriverManager.getConnection(url, user, pass);
             // 从数据库中读模板
-            String sql = "select B from report where A = '" + name
+            String sql = "select frm from report where frmname = '" + name
                     + "'";
             Statement smt = conn.createStatement();
             ResultSet rs = smt.executeQuery(sql);