first commit

2025-02-20 15:14:38 +08:00
commit 70e3764011
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+package lingtao.net.handler;
+
+import com.alibaba.fastjson.JSON;
+import org.apache.commons.lang.StringUtils;
+import org.apache.ibatis.type.JdbcType;
+import org.apache.ibatis.type.TypeHandler;
+
+import java.sql.CallableStatement;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.util.Map;
+
+public class MapToVarcharTypeHandler implements TypeHandler<Map<String, String>> {
+    @Override
+    public void setParameter(PreparedStatement ps, int i, Map<String, String> parameter, JdbcType jdbcType) throws SQLException {
+        ps.setString(i, JSON.toJSONString(parameter));
+    }
+
+    @Override
+    public Map<String, String> getResult(ResultSet rs, String columnName) throws SQLException {
+        String resultString = rs.getString(columnName);
+        if (StringUtils.isEmpty(resultString)) {
+            return JSON.parseObject(resultString, Map.class);
+        }
+        return null;
+    }
+
+    @Override
+    public Map<String, String> getResult(ResultSet rs, int columnIndex) throws SQLException {
+        String resultString = rs.getString(columnIndex);
+        if (StringUtils.isEmpty(resultString)) {
+            return JSON.parseObject(resultString, Map.class);
+        }
+        return null;
+    }
+
+    @Override
+    public Map<String, String> getResult(CallableStatement cs, int columnIndex) throws SQLException {
+        String resultString = cs.getString(columnIndex);
+        if (StringUtils.isEmpty(resultString)) {
+            return JSON.parseObject(resultString, Map.class);
+        }
+        return null;
+    }
+}