我具有以下方法来批量执行准备好的语句：
public void cleanupForSearchReplaceMap(Map<String, String> SearchReplaceMap) throws SQLException{
System.out.println("we are insde the cleanupForSearchReplaceMap method");
Connection conn = null;
PreparedStatement pstmt = null;
String sql3 = "UPDATE BODYCONTENT" +
" SET BODY = CAST(REPLACE(CAST(BODY AS NVARCHAR(MAX)), ? , ?) AS NTEXT)" +
" FROM dbo.BODYCONTENT" +
" WHERE BODY LIKE '%[^A-Za-z0-9]' + ? + '[^A-Za-z0-9]%'";
try {
conn = DatabaseUtil.getConnection();
System.out.println("connection established...");
conn.setAutoCommit(false);
// for(String str: searchStrList) {
for (Map.Entry<String, String> entry : SearchReplaceMap.entrySet()) {
String key = entry.getKey();
String value = entry.getValue();
System.out.println(" query: " + sql3 + " searchstring: " + key + " replacestring: " + value);
pstmt = conn.prepareStatement(sql3);
pstmt.setNString(1, key.trim());
System.out.println(" 1. settingstring " + key);
pstmt.setNString(2, value.trim());
System.out.println(" 2. settingstring " + value);
pstmt.setNString(3, key.trim());
System.out.println(" 2. settingstring " + key);
System.out.println(" here is the prepared statement: " + pstmt);
pstmt.addBatch();
}
pstmt.executeBatch();
System.out.println(" length of preparedstatement.executeBatch(): " + pstmt.executeBatch().length);
conn.commit();
} catch (SQLException e) {
System.out.println(e.getMessage());
//conn.rollback();
} finally {
if (pstmt != null) {
pstmt.close();
}
if (conn != null) {
conn.close();
}
}
}
stmt.executeBatch()的长度始终为0。我不知道为什么。
这是我在日志中看到的：
connection established...
query: UPDATE BODYCONTENT SET BODY = CAST(REPLACE(CAST(BODY AS NVARCHAR(MAX)), ? , ?) AS NTEXT) FROM dbo.BODYCONTENT WHERE BODY LIKE '%[^A-Za-z0-9]' + ? + '[^A-Za-z0-9]%' searchstring: a replacestring: BMW
1. settingstring a
2. settingstring BMW
2. settingstring a
here is the prepared statement: SQLServerPreparedStatement:1
query: UPDATE BODYCONTENT SET BODY = CAST(REPLACE(CAST(BODY AS NVARCHAR(MAX)), ? , ?) AS NTEXT) FROM dbo.BODYCONTENT WHERE BODY LIKE '%[^A-Za-z0-9]' + ? + '[^A-Za-z0-9]%' searchstring: confluence replacestring: BMW
1. settingstring confluence
2. settingstring BMW
2. settingstring confluence
here is the prepared statement: SQLServerPreparedStatement:2
query: UPDATE BODYCONTENT SET BODY = CAST(REPLACE(CAST(BODY AS NVARCHAR(MAX)), ? , ?) AS NTEXT) FROM dbo.BODYCONTENT WHERE BODY LIKE '%[^A-Za-z0-9]' + ? + '[^A-Za-z0-9]%' searchstring: import replacestring: BMW
1. settingstring import
2. settingstring BMW
2. settingstring import
here is the prepared statement: SQLServerPreparedStatement:3
query: UPDATE BODYCONTENT SET BODY = CAST(REPLACE(CAST(BODY AS NVARCHAR(MAX)), ? , ?) AS NTEXT) FROM dbo.BODYCONTENT WHERE BODY LIKE '%[^A-Za-z0-9]' + ? + '[^A-Za-z0-9]%' searchstring: technical replacestring: BMW
1. settingstring technical
2. settingstring BMW
2. settingstring technical
here is the prepared statement: SQLServerPreparedStatement:4
query: UPDATE BODYCONTENT SET BODY = CAST(REPLACE(CAST(BODY AS NVARCHAR(MAX)), ? , ?) AS NTEXT) FROM dbo.BODYCONTENT WHERE BODY LIKE '%[^A-Za-z0-9]' + ? + '[^A-Za-z0-9]%' searchstring: in replacestring: BMW
1. settingstring in
2. settingstring BMW
2. settingstring in
here is the prepared statement: SQLServerPreparedStatement:5
query: UPDATE BODYCONTENT SET BODY = CAST(REPLACE(CAST(BODY AS NVARCHAR(MAX)), ? , ?) AS NTEXT) FROM dbo.BODYCONTENT WHERE BODY LIKE '%[^A-Za-z0-9]' + ? + '[^A-Za-z0-9]%' searchstring: Eclipse replacestring: BMW
1. settingstring Eclipse
2. settingstring BMW
2. settingstring Eclipse
here is the prepared statement: SQLServerPreparedStatement:6
query: UPDATE BODYCONTENT SET BODY = CAST(REPLACE(CAST(BODY AS NVARCHAR(MAX)), ? , ?) AS NTEXT) FROM dbo.BODYCONTENT WHERE BODY LIKE '%[^A-Za-z0-9]' + ? + '[^A-Za-z0-9]%' searchstring: Piano replacestring: BMW
1. settingstring Piano
2. settingstring BMW
2. settingstring Piano
here is the prepared statement: SQLServerPreparedStatement:7
query: UPDATE BODYCONTENT SET BODY = CAST(REPLACE(CAST(BODY AS NVARCHAR(MAX)), ? , ?) AS NTEXT) FROM dbo.BODYCONTENT WHERE BODY LIKE '%[^A-Za-z0-9]' + ? + '[^A-Za-z0-9]%' searchstring: file replacestring: BMW
1. settingstring file
2. settingstring BMW
2. settingstring file
here is the prepared statement: SQLServerPreparedStatement:8
query: UPDATE BODYCONTENT SET BODY = CAST(REPLACE(CAST(BODY AS NVARCHAR(MAX)), ? , ?) AS NTEXT) FROM dbo.BODYCONTENT WHERE BODY LIKE '%[^A-Za-z0-9]' + ? + '[^A-Za-z0-9]%' searchstring: bubble replacestring: BMW
1. settingstring bubble
2. settingstring BMW
2. settingstring bubble
here is the prepared statement: SQLServerPreparedStatement:9
query: UPDATE BODYCONTENT SET BODY = CAST(REPLACE(CAST(BODY AS NVARCHAR(MAX)), ? , ?) AS NTEXT) FROM dbo.BODYCONTENT WHERE BODY LIKE '%[^A-Za-z0-9]' + ? + '[^A-Za-z0-9]%' searchstring: and replacestring: BMW
1. settingstring and
2. settingstring BMW
2. settingstring and
here is the prepared statement: SQLServerPreparedStatement:10
query: UPDATE BODYCONTENT SET BODY = CAST(REPLACE(CAST(BODY AS NVARCHAR(MAX)), ? , ?) AS NTEXT) FROM dbo.BODYCONTENT WHERE BODY LIKE '%[^A-Za-z0-9]' + ? + '[^A-Za-z0-9]%' searchstring: text replacestring: BMW
1. settingstring text
2. settingstring BMW
2. settingstring text
here is the prepared statement: SQLServerPreparedStatement:11
query: UPDATE BODYCONTENT SET BODY = CAST(REPLACE(CAST(BODY AS NVARCHAR(MAX)), ? , ?) AS NTEXT) FROM dbo.BODYCONTENT WHERE BODY LIKE '%[^A-Za-z0-9]' + ? + '[^A-Za-z0-9]%' searchstring: copy replacestring: BMW
1. settingstring copy
2. settingstring BMW
2. settingstring copy
here is the prepared statement: SQLServerPreparedStatement:12
query: UPDATE BODYCONTENT SET BODY = CAST(REPLACE(CAST(BODY AS NVARCHAR(MAX)), ? , ?) AS NTEXT) FROM dbo.BODYCONTENT WHERE BODY LIKE '%[^A-Za-z0-9]' + ? + '[^A-Za-z0-9]%' searchstring: page replacestring: BMW
1. settingstring page
2. settingstring BMW
2. settingstring page
here is the prepared statement: SQLServerPreparedStatement:13
length of preparedstatement.executeBatch(): 0
每次仅执行最后一个准备好的语句。