60 lines
1.6 KiB
Java
60 lines
1.6 KiB
Java
package com.ff.base.handler;
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import com.alibaba.fastjson2.JSON;
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import org.apache.ibatis.type.BaseTypeHandler;
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import org.apache.ibatis.type.JdbcType;
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import java.sql.CallableStatement;
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import java.sql.PreparedStatement;
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import java.sql.ResultSet;
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import java.sql.SQLException;
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/**
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* mybatis json字段转换
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*
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* @author cengy
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*/
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public class JsonHandler<T> extends BaseTypeHandler<T> {
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private final Class<T> type;
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public JsonHandler(Class<T> type) {
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if (type == null) {
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throw new IllegalArgumentException("Type argument cannot be null");
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}
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this.type = type;
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}
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@Override
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public void setNonNullParameter(PreparedStatement ps, int i, T parameter, JdbcType jdbcType) throws SQLException {
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ps.setString(i, JSON.toJSONString(parameter));
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}
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@Override
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public T getNullableResult(ResultSet rs, String columnName) throws SQLException {
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String json = rs.getString(columnName);
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if (json != null) {
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return JSON.parseObject(json, type);
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}
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return null;
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}
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@Override
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public T getNullableResult(ResultSet rs, int columnIndex) throws SQLException {
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String json = rs.getString(columnIndex);
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if (json != null) {
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return JSON.parseObject(json, type);
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}
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return null;
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}
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@Override
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public T getNullableResult(CallableStatement cs, int columnIndex) throws SQLException {
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String json = cs.getString(columnIndex);
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if (json != null) {
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return JSON.parseObject(json, type);
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}
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return null;
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}
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}
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