JavaBean类
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public class ShareClose {
private Integer id;
private String tsCode;
private JSONObject close;
}
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typeHandler
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import org.apache.ibatis.type.BaseTypeHandler;
import org.apache.ibatis.type.JdbcType;
import org.apache.ibatis.type.MappedJdbcTypes;
import org.apache.ibatis.type.MappedTypes;
import java.sql.CallableStatement;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import com.alibaba.fastjson.JSONObject;
import org.springframework.context.annotation.Description;
@MappedTypes(JSONObject.class)
@MappedJdbcTypes(JdbcType.LONGVARCHAR)
public class JsonObjectTypeHandler extends BaseTypeHandler<JSONObject> {
/**
* 设置非空参数
* @param ps
* @param i
* @param parameter
* @param jdbcType
* @throws SQLException
*/
@Override
public void setNonNullParameter(PreparedStatement ps, int i, JSONObject parameter, JdbcType jdbcType) throws SQLException {
ps.setString(i, String.valueOf(parameter.toJSONString()));
}
/**
* 根据列名，获取可以为空的结果
* @param rs
* @param columnName
* @return
* @throws SQLException
*/
@Override
public JSONObject getNullableResult(ResultSet rs, String columnName) throws SQLException {
String sqlJson = rs.getString(columnName);
if (null != sqlJson){
return JSONObject.parseObject(sqlJson);
}
return null;
}
/**
* 根据列索引，获取可以为空的结果
* @param rs
* @param columnIndex
* @return
* @throws SQLException
*/
@Override
public JSONObject getNullableResult(ResultSet rs, int columnIndex) throws SQLException {
String sqlJson = rs.getString(columnIndex);
if (null != sqlJson){
return JSONObject.parseObject(sqlJson);
}
return null;
}
@Override
public JSONObject getNullableResult(CallableStatement cs, int columnIndex) throws SQLException {
String sqlJson = cs.getString(columnIndex);
if (null != sqlJson){
return JSONObject.parseObject(sqlJson);
}
return null;
}
}
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mapper.xml
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<resultMap id="ResultMapWithBLOBs" type="com.ms.quanplat.bean.ShareClose">
<constructor>
<idArg column="id" javaType="java.lang.Integer" jdbcType="INTEGER" />
<arg column="ts_code" javaType="java.lang.String" jdbcType="VARCHAR" />
<arg column="close" javaType="com.alibaba.fastjson.JSONObject" jdbcType="LONGVARCHAR" typeHandler="com.ms.quanplat.config.handler.JsonObjectTypeHandler"/>
</constructor>
</resultMap>
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最后不要忘记在配置文件中配置handler的包路径
mybatis与mysql的Json格式映射-使用JSONObject | codestn - 程序方块
