我想将包含insert语句的sql文件转换为相应的tbl文件。我尝试了下面给出的代码。它工作得很好，但我需要在每个记录后留一个空行，即在处理到两个插入语句之间必须有一个空行。
输入：
--------------------------------------------------
PRINT ''
PRINT 'Inserting data into table post_tran...'
PRINT ''
--------------------------------------------------
GO
INSERT INTO
post_tran(post_tran_id,tran_nr,datetime_tran_local,system_trace_audit_nr,settle_
amount_rsp,settle_tran_fee_rsp,post_tran_cust_id,prev_post_tran_id,next_post_tra
n_id,message_type,tran_postilion_originated,sink_node_name,settle_entity_id,batc
h_nr,tran_completed,tran_type,rsp_code_rsp,auth_type,auth_reason,retrieval_refer
ence_nr,settle_amount_req,settle_tran_fee_req,settle_currency_code,datetime_req,
recon_business_date,realtime_business_date,acquiring_inst_id_code) VALUES(
1,2,'2002-04-02 19:02:28','008497',4120,10, 2, 0,0,'0200', 0, 'LinkSink',
1,1,0,'01','01','00',0,'000000000102',6000,0,'840', '', '2004-02-11
12:00:00', '2004-02-11 12:00:00', '2200017000')
INSERT INTO post_tran(
post_tran_id,tran_nr,datetime_tran_local,system_trace_audit_nr,settle_amount_rsp
,settle_tran_fee_rsp,post_tran_cust_id,prev_post_tran_id,next_post_tran_id,messa
ge_type,tran_postilion_originated,sink_node_name,settle_entity_id,batch_nr,tran_
completed,tran_type,rsp_code_rsp,auth_type,auth_reason,retrieval_reference_nr,se
ttle_amount_req,settle_tran_fee_req,settle_currency_code,datetime_req,recon_busi
ness_date,realtime_business_date,acquiring_inst_id_code) VALUES( 2,2,'2002-
04-02 19:02:28','008497',4120,10, 2, 0,0,'0200', 1, 'LinkSink',
1,1,0,'01','01','00',0,'000000000102',6000,0,'840', '', '2004-02-11
12:00:00', '2004-02-11 12:00:00', '2200017000')
输出：
[name] post_tran_id[/name]=[data] 1[/data]
[name]tran_nr[/name]=[data]2[/data]
[name]datetime_tran_local[/name]=[data]2002-04-02 19:02:28[/data]
[name]system_trace_audit_nr[/name]=[data]008497[/data]
[name]settle_amount_rsp[/name]=[data]4120[/data]
[name]settle_tran_fee_rsp[/name]=[data]10[/data]
[name]post_tran_cust_id[/name]=[data] 2[/data]
[name]prev_post_tran_id[/name]=[data] 0[/data]
[name]next_post_tran_id[/name]=[data]0[/data]
[name] post_tran_id[/name]=[data] 2[/data]
[name]tran_nr[/name]=[data]2[/data]
[name]datetime_tran_local[/name]=[data]2002-04-02 19:02:28[/data]
[name]system_trace_audit_nr[/name]=[data]008497[/data]
[name]settle_amount_rsp[/name]=[data]4120[/data]
[name]settle_tran_fee_rsp[/name]=[data]10[/data]
[name]post_tran_cust_id[/name]=[data] 2[/data]
[name]prev_post_tran_id[/name]=[data] 0[/data]
[name]next_post_tran_id[/name]=[data]0[/data]
必需输出：
[name] post_tran_id[/name]=[data] 1[/data]
[name]tran_nr[/name]=[data]2[/data]
[name]datetime_tran_local[/name]=[data]2002-04-02 19:02:28[/data]
[name]system_trace_audit_nr[/name]=[data]008497[/data]
[name]settle_amount_rsp[/name]=[data]4120[/data]
[name]settle_tran_fee_rsp[/name]=[data]10[/data]
[name]post_tran_cust_id[/name]=[data] 2[/data]
[name]prev_post_tran_id[/name]=[data] 0[/data]
[name]next_post_tran_id[/name]=[data]0[/data]
[name] post_tran_id[/name]=[data] 2[/data]
[name]tran_nr[/name]=[data]2[/data]
[name]datetime_tran_local[/name]=[data]2002-04-02 19:02:28[/data]
[name]system_trace_audit_nr[/name]=[data]008497[/data]
[name]settle_amount_rsp[/name]=[data]4120[/data]
[name]settle_tran_fee_rsp[/name]=[data]10[/data]
[name]post_tran_cust_id[/name]=[data] 2[/data]
[name]prev_post_tran_id[/name]=[data] 0[/data]
[name]next_post_tran_id[/name]=[data]0[/data]
代码：
public class SqlToTblCovertor {
private File source_folder = null;
private File destination_folder = null;
private String source_absolute_path = null;
private String destination_absolute_path = null;
private String absolute_file_name = null;
private String absolute_new_file_name = null;
private List<String> column_name_list = null;
private List<String> column_values_list = null;
public SqlToTblCovertor(String source_folder_name,
String destination_folder_name) {
source_folder = new File(source_folder_name);
destination_folder = new File(destination_folder_name);
source_absolute_path = source_folder.getAbsolutePath();
destination_absolute_path = destination_folder.getAbsolutePath();
column_name_list = new ArrayList<String>();
column_values_list = new ArrayList<String>();
}
public void run() throws IOException {
validateInputs();
migrateFiles();
}
private void validateInputs() {
if (source_folder.isDirectory() == false) {
displayMessageAndExit("Source must be a FOLDER");
} else if (destination_folder.isDirectory() == false) {
displayMessageAndExit("Destination must be a FOLDER");
}
}
private void migrateFiles() throws IOException {
String[] file_list = source_folder.list();
for (String file_name : file_list) {
migrateFileContains(file_name);
}
}
private void migrateFileContains(String file_name) throws IOException {
absolute_file_name = source_absolute_path + File.separator + file_name;
absolute_new_file_name = destination_absolute_path + File.separator
+ getNewFileName(file_name);
BufferedReader br = new BufferedReader(new InputStreamReader(
new FileInputStream(new File(absolute_file_name))));
String line_info = br.readLine();
StringBuffer new_query = new StringBuffer("");
while (line_info != null) {
new_query.append(convertQuery(line_info));
line_info = br.readLine();
}
FileWriter fw = new FileWriter(new File(absolute_new_file_name));
fw.write(new_query.toString());
br.close();
fw.close();
}
private String convertQuery(String query) {
String new_query = "";
if (query.startsWith("INSERT")) {
int round_bracket_start = query.indexOf('(');
int round_bracket_end = query.indexOf(')');
int round_bracket_start_after_values = query.indexOf('(',
round_bracket_end);
String query_column_name = query.substring(round_bracket_start + 1,
round_bracket_end);
String query_column_values = query.substring(
round_bracket_start_after_values + 1, query.length() - 1);
covertColumnNameList(query_column_name);
covertColumnValueList(',' + query_column_values + ',');
new_query = createNewQuery() + "\n";
}
column_name_list.clear();
column_values_list.clear();
return new_query;
}
private void covertColumnNameList(String query_column_name) {
String[] column_list = query_column_name.split(",");
for (String column_name : column_list) {
column_name_list.add(column_name);
}
}
private void covertColumnValueList(String query_column_values) {
if (query_column_values.equals(",")) {
return;
}
String column_value = null;
int comma_index = query_column_values.indexOf(',');
int next_comma_index = 0;
if (query_column_values.charAt(comma_index + 1) == '\'') {
int quote_index = query_column_values.indexOf('\'', comma_index);
int next_quote_index = query_column_values.indexOf('\'',
quote_index + 1);
next_comma_index = query_column_values.indexOf(',',
next_quote_index);
column_value = query_column_values.substring(comma_index + 2,
next_comma_index - 1);
} else {
next_comma_index = query_column_values
.indexOf(',', comma_index + 1);
column_value = query_column_values.substring(comma_index + 1,
next_comma_index);
}
column_values_list.add(column_value);
covertColumnValueList(query_column_values.substring(next_comma_index));
}
private String createNewQuery() {
StringBuffer buffer = new StringBuffer("");
if (column_name_list.size() != column_values_list.size()) {
display("Error : " + absolute_file_name);
} else {
display("Migrate : " + absolute_file_name);
for (int index = 0; index < column_name_list.size(); index++) {
buffer.append(createNewColumn(column_name_list.get(index),
column_values_list.get(index)));
}
}
displayFileInformation();
return buffer.toString();
}
private void displayFileInformation() {
display("Column Name :" + column_name_list);
display("Column Values :" + column_values_list);
display("\n");
}
private String createNewColumn(String column_name, String column_value) {
StringBuffer buffer = new StringBuffer("");
buffer.append("[name]");
buffer.append(column_name);
buffer.append("[/name]=[data]");
buffer.append(column_value);
buffer.append("[/data]");
buffer.append("\r\n");
return buffer.toString();
}
private String getNewFileName(String file_name) {
String new_file_name = "";
int dot_index = file_name.indexOf('.');
new_file_name = file_name.subSequence(0, dot_index) + ".tbl";
return new_file_name;
}
private static FileWriter log_file = null;
private static void display(String message) {
try {
if (log_file == null) {
File file = new File("d:\\config_migrator_output.log");
file.deleteOnExit();
log_file = new FileWriter(file);
}
log_file.write(message + "\n");
log_file.flush();
} catch (IOException e) {
System.out.println("Error in generating log file.");
}
}
private static void displayMessageAndExit(String message) {
display(message);
System.exit(0);
}
private static void showUsages() {
displayMessageAndExit("java ConfigMigrator <source-folder> <destination-
folder>");
}
public static void main(String[] args) {
if (args.length != 2) {
showUsages();
}
SqlToTblCovertor config_migrator = new SqlToTblCovertor(args[0],
args[1]);
try {
config_migrator.run();
} catch (IOException e) {
e.printStackTrace();
}
}}
答案 0 :(得分：0)
阅读每个插页后添加一个新行。
FileWriter fw = new FileWriter(new File(absolute_new_file_name));
while (line_info != null) {
String convertQuery = convertQuery(line_info);
if(convertQuery.isEmpty()) {
line_info = br.readLine();
continue;
}
new_query.append(convertQuery);
new_query.append(System.getProperty("line.separator"));
fw.write(new_query.toString());
new_query.setLength(0);
line_info = br.readLine();
}
也直接写入文件以避免内存不足错误。