package com.hx.mybatis.aes.handler;
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import com.hx.mybatis.aes.springbean.VariableAesKey;
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import com.hx.util.mysql.aes.MysqlHexAesTool;
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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 org.apache.ibatis.type.MappedJdbcTypes;
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import org.apache.ibatis.type.MappedTypes;
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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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* @author CJH
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* @Date 2021-01-02
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* // @MappedTypes注解中的类代表此转换器可以自动转换为的java对象,@MappedJdbcTypes注解中设置的是对应的jdbctype,mysql的json对象对应的jdbctype为VARCHAR。
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*/
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@MappedTypes(value = {String.class})
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@MappedJdbcTypes(value = {JdbcType.VARCHAR}, includeNullJdbcType = true)
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public class GenericStringHandler extends BaseTypeHandler<String> {
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public GenericStringHandler() {
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}
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@Override
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public void setNonNullParameter(PreparedStatement ps, int i, String parameter, JdbcType jdbcType) throws SQLException {
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ps.setString(i, parameter);
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}
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@Override
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public String getNullableResult(ResultSet rs, String columnName) throws SQLException {
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String data = rs.getString(columnName);
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if(data != null && data.length()%32==0 && MysqlHexAesTool.isHexStrValid(data)){
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try{
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data = MysqlHexAesTool.decryptData(data, VariableAesKey.getAesKey(columnName),null);
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}catch (Exception e){
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//e.printStackTrace();
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}
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}
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return data;
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}
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@Override
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public String getNullableResult(ResultSet rs, int columnIndex) throws SQLException {
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String data = rs.getString(columnIndex);
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if(data != null && data.length()%32==0 && MysqlHexAesTool.isHexStrValid(data)){
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try{
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data = MysqlHexAesTool.decryptData(data, VariableAesKey.getAesKey(null),null);
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}catch (Exception e){
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//e.printStackTrace();
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}
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}
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return data;
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}
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@Override
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public String getNullableResult(CallableStatement cs, int columnIndex) throws SQLException {
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String data = cs.getString(columnIndex);
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if(data != null && data.length() < 129 && data.length()%32==0 && MysqlHexAesTool.isHexStrValid(data)){
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try{
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data = MysqlHexAesTool.decryptData(data, VariableAesKey.getAesKey(null),null);
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}catch (Exception e){
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//e.printStackTrace();
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}
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}
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return data;
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}
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}
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