1.定義枚舉類

package com.learn.ssm.chapter4.enumeration; public enum SexEnum {MALE(1, "男"),FEMALE(0, "女");private int id;private String name;public int getId() {return id;}public void setId(int id) {this.id = id;}public String getName() {return name;}public void setName(String name) {this.name = name;}SexEnum(int id, String name) {this.id = id;this.name = name;}public static SexEnum getSexById(int id) {for (SexEnum sex : SexEnum.values()) {if (sex.getId() == id) {return sex;}}return null;} }

2.實現typeHandler類

package com.learn.ssm.chapter4.typehandler; import java.sql.CallableStatement; import java.sql.PreparedStatement; import java.sql.ResultSet; import java.sql.SQLException;import org.apache.ibatis.type.JdbcType; import org.apache.ibatis.type.TypeHandler;import com.learn.ssm.chapter4.enumeration.SexEnum;@MappedTypes(SexEnum.class) @MappedjdbcTypes(jdbcType.INTEGER) public class SexEnumTypeHandler implements TypeHandler<SexEnum> {@Overridepublic void setParameter(PreparedStatement ps, int i, SexEnum parameter,JdbcType jdbcType) throws SQLException {ps.setInt(i, parameter.getId());}@Overridepublic SexEnum getResult(ResultSet rs, String columnName)throws SQLException {int id = rs.getInt(columnName);return SexEnum.getSexById(id);}@Overridepublic SexEnum getResult(ResultSet rs, int columnIndex) throws SQLException {int id = rs.getInt(columnIndex);return SexEnum.getSexById(id);}@Overridepublic SexEnum getResult(CallableStatement cs, int columnIndex)throws SQLException {int id = cs.getInt(columnIndex);return SexEnum.getSexById(id);}}

3. 配置

<typeHandlers><!-- <typeHandler jdbcType="VARCHAR" javaType="string" handler="com.learn.ssm.chapter4.typehandler.SexEnumTypeHandler" /> --><package name="com.learn.ssm.chapter4.typehandler" /></typeHandlers>

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