IBatis批量处理那些事

IBatis批量处理之Sql样例

批量更新：

<update id="Update" resultMap="Select" parameterClass="list">
begin
<iterate conjunction="">
update SYS_TABLE set
Category=#[].Category#,
Name =#[].Name#,
Code =#[].Code#,
Status =#[].Status#
where id = #[].Id#;
</iterate>
end;
</update>

批量删除：

<delete id="Del" resultMap="Select" parameterClass="list">
delete
from SYS_TABLE
where id in
<iterate conjunction="," open="(" close=")">
#[]#
</iterate>
</delete>

批量插入：

<insert id="Add" resultMap="Select" parameterClass="list">
insert all
<iterate conjunction="">
into SYS_TABLE
(id,Category,Name,Code,Status)
values(#[].Id#,#[].Category#,#[].Name#,
#[].Code#,#[].Status#)
</iterate>
<!--下面这句必须加，不然会提示找不到SELECT-->
select * from dual
</insert>

IBatis批量处理之Java样例

批量更新

public void batchUpdate( final String statementName, final List list) {

try {
if (list != null ) {
this .getSqlMapClientTemplate().execute( new SqlMapClientCallback() {
public Object doInSqlMapClient(SqlMapExecutor executor) throws SQLException {
executor.startBatch();
for ( int i = 0, n = list.size(); i < n; i++) {
executor.update(statementName, list.get(i));
}
executor.executeBatch();
return null ;
}
});
}
} catch (Exception e) {
if ( log .isDebugEnabled()) {
e.printStackTrace();
log .debug( "batchUpdate error: id [" + statementName + "], parameterObject [" + list + "].  Cause: " + e.getMessage());
}
}
}

批量删除

public void batchDelete( final String statementName, final List list) {
try {
if (list != null ) {
this .getSqlMapClientTemplate().execute( new SqlMapClientCallback() {
public Object doInSqlMapClient(SqlMapExecutor executor) throws SQLException {

executor.startBatch();
for ( int i = 0, n = list.size(); i < n; i++) {
executor.delete(statementName, list.get(i));
}
executor.executeBatch();
return null ;
}
});
}
} catch (Exception e) {
if ( log .isDebugEnabled()) {
e.printStackTrace();
log .debug( "batchDelete error: id [" + statementName + "], parameterObject [" + list + "].  Cause: " + e.getMessage());
}
}
}

批量插入

public void batchInsert( final String statementName, final List list) {
try {
if (list != null ) {
this .getSqlMapClientTemplate().execute( new SqlMapClientCallback() {
public Object doInSqlMapClient(SqlMapExecutor executor) throws SQLException {
executor.startBatch();
for ( int i = 0, n = list.size(); i < n; i++) {
executor.insert(statementName, list.get(i));
}
executor.executeBatch();
return null ;
}
});
}
} catch (Exception e) {
if ( log .isDebugEnabled()) {
e.printStackTrace();
log .debug( "batchInsert error: id [" + statementName + "], parameterObject [" + list + "].  Cause: " + e.getMessage());
}
}
}