Mybatis調(diào)用PostgreSQL存儲(chǔ)過(guò)程實(shí)現(xiàn)數(shù)組入?yún)鬟f

CREATE OR REPLACE FUNCTION "public"."func_arr_update"(ids _int4)
 RETURNS "pg_catalog"."void" AS $BODY$
DECLARE
   scount INTEGER;
   rownum integer := 1;
BEGIN
    scount:=array_length(ids,1);
    while rownum = scount LOOP
      update t_student set stuname = stuname || ' has been modified. ' where stuid = ids[rownum];
      rownum := rownum + 1;
  END LOOP;
  RETURN;
END
$BODY$
 LANGUAGE 'plpgsql' VOLATILE COST 100
;

ALTER FUNCTION "public"."func_arr_update"(ids _int4) OWNER TO "postgres";

 public TypeHandlerRegistry() {
  register(Boolean.class, new BooleanTypeHandler());
  register(boolean.class, new BooleanTypeHandler());
  register(JdbcType.BOOLEAN, new BooleanTypeHandler());
  register(JdbcType.BIT, new BooleanTypeHandler());

  register(Byte.class, new ByteTypeHandler());
  register(byte.class, new ByteTypeHandler());
  register(JdbcType.TINYINT, new ByteTypeHandler());

  register(Short.class, new ShortTypeHandler());
  register(short.class, new ShortTypeHandler());
  register(JdbcType.SMALLINT, new ShortTypeHandler());

  register(Integer.class, new IntegerTypeHandler());
  register(int.class, new IntegerTypeHandler());
  register(JdbcType.INTEGER, new IntegerTypeHandler());

  register(Long.class, new LongTypeHandler());
  register(long.class, new LongTypeHandler());

  register(Float.class, new FloatTypeHandler());
  register(float.class, new FloatTypeHandler());
  register(JdbcType.FLOAT, new FloatTypeHandler());

  register(Double.class, new DoubleTypeHandler());
  register(double.class, new DoubleTypeHandler());
  register(JdbcType.DOUBLE, new DoubleTypeHandler());

  register(String.class, new StringTypeHandler());
  register(String.class, JdbcType.CHAR, new StringTypeHandler());
  register(String.class, JdbcType.CLOB, new ClobTypeHandler());
  register(String.class, JdbcType.VARCHAR, new StringTypeHandler());
  register(String.class, JdbcType.LONGVARCHAR, new ClobTypeHandler());
  register(String.class, JdbcType.NVARCHAR, new NStringTypeHandler());
  register(String.class, JdbcType.NCHAR, new NStringTypeHandler());
  register(String.class, JdbcType.NCLOB, new NClobTypeHandler());
  register(JdbcType.CHAR, new StringTypeHandler());
  register(JdbcType.VARCHAR, new StringTypeHandler());
  register(JdbcType.CLOB, new ClobTypeHandler());
  register(JdbcType.LONGVARCHAR, new ClobTypeHandler());
  register(JdbcType.NVARCHAR, new NStringTypeHandler());
  register(JdbcType.NCHAR, new NStringTypeHandler());
  register(JdbcType.NCLOB, new NClobTypeHandler());

  register(Object.class, JdbcType.ARRAY, new ArrayTypeHandler());
  register(JdbcType.ARRAY, new ArrayTypeHandler());

  register(BigInteger.class, new BigIntegerTypeHandler());
  register(JdbcType.BIGINT, new LongTypeHandler());

  register(BigDecimal.class, new BigDecimalTypeHandler());
  register(JdbcType.REAL, new BigDecimalTypeHandler());
  register(JdbcType.DECIMAL, new BigDecimalTypeHandler());
  register(JdbcType.NUMERIC, new BigDecimalTypeHandler());

  register(Byte[].class, new ByteObjectArrayTypeHandler());
  register(Byte[].class, JdbcType.BLOB, new BlobByteObjectArrayTypeHandler());
  register(Byte[].class, JdbcType.LONGVARBINARY, new BlobByteObjectArrayTypeHandler());
  register(byte[].class, new ByteArrayTypeHandler());
  register(byte[].class, JdbcType.BLOB, new BlobTypeHandler());
  register(byte[].class, JdbcType.LONGVARBINARY, new BlobTypeHandler());
  register(JdbcType.LONGVARBINARY, new BlobTypeHandler());
  register(JdbcType.BLOB, new BlobTypeHandler());

  register(Object.class, UNKNOWN_TYPE_HANDLER);
  register(Object.class, JdbcType.OTHER, UNKNOWN_TYPE_HANDLER);
  register(JdbcType.OTHER, UNKNOWN_TYPE_HANDLER);

  register(Date.class, new DateTypeHandler());
  register(Date.class, JdbcType.DATE, new DateOnlyTypeHandler());
  register(Date.class, JdbcType.TIME, new TimeOnlyTypeHandler());
  register(JdbcType.TIMESTAMP, new DateTypeHandler());
  register(JdbcType.DATE, new DateOnlyTypeHandler());
  register(JdbcType.TIME, new TimeOnlyTypeHandler());

  register(java.sql.Date.class, new SqlDateTypeHandler());
  register(java.sql.Time.class, new SqlTimeTypeHandler());
  register(java.sql.Timestamp.class, new SqlTimestampTypeHandler());

  // issue #273
  register(Character.class, new CharacterTypeHandler());
  register(char.class, new CharacterTypeHandler());
 }

/*
 *  Copyright 2009-2012 The MyBatis Team
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */
package org.apache.ibatis.type;

import java.sql.Array;
import java.sql.CallableStatement;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;

public class ArrayTypeHandler extends BaseTypeHandlerObject> {

 public ArrayTypeHandler() {
  super();
 }

 @Override
 public void setNonNullParameter(PreparedStatement ps, int i, Object parameter, JdbcType jdbcType) throws SQLException {
  ps.setArray(i, (Array) parameter);
 }

 @Override
 public Object getNullableResult(ResultSet rs, String columnName) throws SQLException {
  Array array = rs.getArray(columnName);
  return array == null ? null : array.getArray();
 }

 @Override
 public Object getNullableResult(ResultSet rs, int columnIndex) throws SQLException {
  Array array = rs.getArray(columnIndex);
  return array == null ? null : array.getArray();
 }

 @Override
 public Object getNullableResult(CallableStatement cs, int columnIndex) throws SQLException {
  Array array = cs.getArray(columnIndex);
  return array == null ? null : array.getArray();
 }

}

@Test
public void testFunc1() {
  SqlSession session = sqlSessionFactory.openSession();
  try {
    MapString, Object> map = new HashMapString, Object>();
    map.put("ids", new Integer[] { 101, 102, 103 });
    session.update("com.wl.entity.StudentMapper.testFuncUpdate2", map);
    session.commit();
  } catch (Exception e) {
    e.printStackTrace();
  } finally {
    session.close();
  }
}

update id="testFuncUpdate2" statementType="CALLABLE">
  {call func_arr_update (#{ids,mode=IN})} 
/update>

  /*
   * This stores an Object into a parameter.
   */
  public void setObject(int parameterIndex, Object x) throws SQLException
  {
    checkClosed();
    if (x == null)
      setNull(parameterIndex, Types.OTHER);
    else if (x instanceof String)
      setString(parameterIndex, (String)x);
    else if (x instanceof BigDecimal)
      setBigDecimal(parameterIndex, (BigDecimal)x);
    else if (x instanceof Short)
      setShort(parameterIndex, ((Short)x).shortValue());
    else if (x instanceof Integer)
      setInt(parameterIndex, ((Integer)x).intValue());
    else if (x instanceof Long)
      setLong(parameterIndex, ((Long)x).longValue());
    else if (x instanceof Float)
      setFloat(parameterIndex, ((Float)x).floatValue());
    else if (x instanceof Double)
      setDouble(parameterIndex, ((Double)x).doubleValue());
    else if (x instanceof byte[])
      setBytes(parameterIndex, (byte[])x);
    else if (x instanceof java.sql.Date)
      setDate(parameterIndex, (java.sql.Date)x);
    else if (x instanceof Time)
      setTime(parameterIndex, (Time)x);
    else if (x instanceof Timestamp)
      setTimestamp(parameterIndex, (Timestamp)x);
    else if (x instanceof Boolean)
      setBoolean(parameterIndex, ((Boolean)x).booleanValue());
    else if (x instanceof Byte)
      setByte(parameterIndex, ((Byte)x).byteValue());
    else if (x instanceof Blob)
      setBlob(parameterIndex, (Blob)x);
    else if (x instanceof Clob)
      setClob(parameterIndex, (Clob)x);
    else if (x instanceof Array)
      setArray(parameterIndex, (Array)x);
    else if (x instanceof PGobject)
      setPGobject(parameterIndex, (PGobject)x);
    else if (x instanceof Character)
      setString(parameterIndex, ((Character)x).toString());
    else if (x instanceof Map)
      setMap(parameterIndex, (Map)x);
    else
    {
      // Can't infer a type.
      throw new PSQLException(GT.tr("Can''t infer the SQL type to use for an instance of {0}. Use setObject() with an explicit Types value to specify the type to use.", x.getClass().getName()), PSQLState.INVALID_PARAMETER_TYPE);
    }
  }

package com.wl.util;

import java.sql.Array;
import java.sql.CallableStatement;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;

import org.apache.ibatis.type.BaseTypeHandler;
import org.apache.ibatis.type.JdbcType;
import org.apache.ibatis.type.MappedJdbcTypes;
import org.apache.ibatis.type.TypeException;

@MappedJdbcTypes(JdbcType.ARRAY)
public class ArrayTypeHandler extends BaseTypeHandlerObject[]> {

  private static final String TYPE_NAME_VARCHAR = "varchar";
  private static final String TYPE_NAME_INTEGER = "integer";
  private static final String TYPE_NAME_BOOLEAN = "boolean";
  private static final String TYPE_NAME_NUMERIC = "numeric";

  @Override
  public void setNonNullParameter(PreparedStatement ps, int i,
      Object[] parameter, JdbcType jdbcType) throws SQLException {

    String typeName = null;
    if (parameter instanceof Integer[]) {
      typeName = TYPE_NAME_INTEGER;
    } else if (parameter instanceof String[]) {
      typeName = TYPE_NAME_VARCHAR;
    } else if (parameter instanceof Boolean[]) {
      typeName = TYPE_NAME_BOOLEAN;
    } else if (parameter instanceof Double[]) {
      typeName = TYPE_NAME_NUMERIC;
    }

    if (typeName == null) {
      throw new TypeException(
          "ArrayTypeHandler parameter typeName error, your type is "
              + parameter.getClass().getName());
    }

    Connection conn = ps.getConnection();
    Array array = conn.createArrayOf(typeName, parameter);
    ps.setArray(i, array);
  }

  @Override
  public Object[] getNullableResult(ResultSet rs, String columnName)
      throws SQLException {

    return getArray(rs.getArray(columnName));
  }

  @Override
  public Object[] getNullableResult(ResultSet rs, int columnIndex)
      throws SQLException {

    return getArray(rs.getArray(columnIndex));
  }

  @Override
  public Object[] getNullableResult(CallableStatement cs, int columnIndex)
      throws SQLException {

    return getArray(cs.getArray(columnIndex));
  }

  private Object[] getArray(Array array) {

    if (array == null) {
      return null;
    }

    try {
      return (Object[]) array.getArray();
    } catch (Exception e) {
    }

    return null;
  }
}

  public Array createArrayOf(String typeName, Object[] elements) throws SQLException
  {
    checkClosed();
    int oid = getTypeInfo().getPGArrayType(typeName);
    if (oid == Oid.UNSPECIFIED)
      throw new PSQLException(GT.tr("Unable to find server array type for provided name {0}.", typeName), PSQLState.INVALID_NAME);

    char delim = getTypeInfo().getArrayDelimiter(oid);
    StringBuffer sb = new StringBuffer();
    appendArray(sb, elements, delim);

    // This will not work once we have a JDBC 5,
    // but it'll do for now.
    return new Jdbc4Array(this, oid, sb.toString());
  }

@Test
public void testFunc1() {
  SqlSession session = sqlSessionFactory.openSession();
  try {
    MapString, Object> map = new HashMapString, Object>();
    map.put("ids", new Integer[] { 101, 102, 103 });
    session.update("com.wl.entity.StudentMapper.testFuncUpdate2", map);
    session.commit();
  } catch (Exception e) {
    e.printStackTrace();
  } finally {
    session.close();
  }
}

update id="testFuncUpdate2" statementType="CALLABLE">
  {call func_arr_update (#{ids,mode=IN,typeHandler=com.wl.util.ArrayTypeHandler})} 
/update>