JDBC的批处理操作三种方式 pstmt.addBatch();
SQL批处理是JDBC性能优化的重要武器，经本人研究总结，批处理的用法有三种。
package lavasoft.jdbctest;
import lavasoft.common.DBToolkit;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import java.sql.Statement;
/**
* JDBC的批量操作三种方式
*/
public class BatchExeSQLTest {
public static void main(String[] args) {
exeBatchStaticSQL();
}
/**
* 批量执行预定义模式的SQL
*/
public static void exeBatchParparedSQL() {
Connection conn = null;
try {
conn = DBToolkit.getConnection();
String sql = "insert into testdb.book (kind, name) values (?,?)";
PreparedStatement pstmt = conn.prepareStatement(sql);
pstmt.setString(1, "java");
pstmt.setString(2, "jjjj");
pstmt.addBatch(); //添加一次预定义参数
pstmt.setString(1, "ccc");
pstmt.setString(2, "dddd");
pstmt.addBatch(); //再添加一次预定义参数
//批量执行预定义SQL
pstmt.executeBatch();
} catch (SQLException e) {
e.printStackTrace();
} finally {
DBToolkit.closeConnection(conn);
}
}
/**
* 批量执行混合模式的SQL、有预定义的，还有静态的
*/
public static void exeBatchMixedSQL() {
Connection conn = null;
try {
conn = DBToolkit.getConnection();
String sql = "insert into testdb.book (kind, name) values (?,?)";
PreparedStatement pstmt = conn.prepareStatement(sql);
pstmt.setString(1, "java");
pstmt.setString(2, "jjjj");
pstmt.addBatch(); //添加一次预定义参数
pstmt.setString(1, "ccc");
pstmt.setString(2, "dddd");
pstmt.addBatch(); //再添加一次预定义参数
//添加一次静态SQL
pstmt.addBatch("update testdb.book set kind = 'JAVA' where kind='java'");
//批量执行预定义SQL
pstmt.executeBatch();
} catch (SQLException e) {
e.printStackTrace();
} finally {
DBToolkit.closeConnection(conn);
}
}
/**
* 执行批量静态的SQL
*/
public static void exeBatchStaticSQL() {
Connection conn = null;
try {
conn = DBToolkit.getConnection();
Statement stmt = conn.createStatement();
//连续添加多条静态SQL
stmt.addBatch("insert into testdb.book (kind, name) values ('java', 'java in aciton')");
stmt.addBatch("insert into testdb.book (kind, name) values ('c', 'c in aciton')");
stmt.addBatch("delete from testdb.book where kind ='C#'");
stmt.addBatch("update testdb.book set kind = 'JAVA' where kind='java'");
// stmt.addBatch("select count(*) from testdb.book"); //批量执行不支持Select语句
//执行批量执行
stmt.executeBatch();
} catch (SQLException e) {
e.printStackTrace();
} finally {
DBToolkit.closeConnection(conn);
}
}
}
注意：JDBC的批处理不能加入select语句，否则会抛异常：
java.sql.BatchUpdateException: Can not issue SELECT via executeUpdate().
at com.mysql.jdbc.StatementImpl.executeBatch(StatementImpl.java:1007)
转载自:http://lavasoft.blog.51cto.com/62575/238651
批量更新,插入代码
1./**
2. * 更新数据库已有的customer信息
3. * @param List<CustomerBean>
4. * @return
5. */
6.public int updateExistsInfo(List<CustomerBean> updateList){
7.
8. //查询的SQL语句
9. String sql = "update t_customer set LICENSE_KEY=?,CORPORATE_NAME=?,INTEGRATED_CLASSIFICATION=?,BOSSHEAD=?," +
10. "CONTACT_PHONE=?,ORDER_FREQUENCY=?,CONTACT_ADDRESS=?,USER_ID=? where CUSTOMER_ID=?" ;
11.
12. //插入需要的数据库对象
13. Connection conn = null;
14. PreparedStatement pstmt = null;
15.
16. try {
17. conn = new DBSource().getConnection();
18.
19. //设置事务属性
20. conn.setAutoCommit(false);
21.
22. pstmt = conn.prepareStatement(sql,ResultSet.TYPE_SCROLL_INSENSITIVE,ResultSet.CONCUR_READ_ONLY);
23.
24. for(CustomerBean cbean : updateList){
25. pstmt.setString(1, cbean.getLicense_key());
26. pstmt.setString(2, cbean.getCorporate_name());
27. pstmt.setString(3, cbean.getIntegrated_classification());
28. pstmt.setString(4, cbean.getBosshead());
29. pstmt.setString(5, cbean.getContact_phone());
30. pstmt.setString(6, cbean.getOrder_frequency());
31. pstmt.setString(7, cbean.getContact_address());
32. pstmt.setInt (8, cbean.getUser_id());
33. pstmt.setInt (9, cbean.getCustomer_id());
34.
35. pstmt.addBatch();
36.
37. }
38. int[] tt = pstmt.executeBatch();
39. System.out.println("update : " + tt.length);
40.
41. //提交，设置事务初始值
42. conn.commit();
43. conn.setAutoCommit(true);
44.
45. //插入成功，返回
46. return tt.length;
47.
48. }catch(SQLException ex){
49. try{
50. //提交失败，执行回滚操作
51. conn.rollback();
52.
53. }catch (SQLException e) {
54. e.printStackTrace();
55. System.err.println("updateExistsInfo回滚执行失败!!!");
56. }
57.
58. ex.printStackTrace();
59. System.err.println("updateExistsInfo执行失败");
60.
61. //插入失败返回标志0
62. return 0;
63.
64. }finally {
65. try{
66. //关闭资源
67. if(pstmt != null)pstmt.close();
68. if(conn != null)conn.close();
69.
70. }catch (SQLException e) {
71. e.printStackTrace();
72. System.err.println("资源关闭失败!!!");
73. }
74. }
75.}
76.
77./**
78. * 插入数据中没有的customer信息
79. * @param List<CustomerBean>
80. * @return
81. */
82.public int insertNewInfo(List<CustomerBean> insertList){
83.
84. //查询的SQL语句
85. String sql = "insert into t_customer(CUSTOMER_ID," +
86. "LICENSE_KEY,CORPORATE_NAME,INTEGRATED_CLASSIFICATION,BOSSHEAD,CONTACT_PHONE," +
87. "ORDER_FREQUENCY,CONTACT_ADDRESS,USER_ID,CUSTOMER_NUM,CUSTOMER_CODING," +
88. "INVESTIGATION_TIME,SMS_REC_FLAG,WAP_FLAG,PRICE_GATHERING_FLAG,SOCIETY_STOCK_FLAG," +
89. "REGION_TYPE)" +
90. "VALUES(CUSTOMER.NEXTVAL," +
91. "?,?,?,?,?," +
92. "?,?,?,?,?," +
93. "TO_DATE(?,'YYYY-MM-DD'),?,0,0,0," +
94. "?)" ;
95.
96. //插入需要的数据库对象
97. Connection conn = null;
98. PreparedStatement pstmt = null;
99.
100. try {
101. conn = new DBSource().getConnection();
102.
103. //设置事务属性
104. conn.setAutoCommit(false);
105.
106. pstmt = conn.prepareStatement(sql,ResultSet.TYPE_SCROLL_INSENSITIVE,ResultSet.CONCUR_READ_ONLY);
107.
108. for(CustomerBean cbean : insertList){
109. pstmt.setString(1, cbean.getLicense_key());
110. pstmt.setString(2, cbean.getCorporate_name());
111. pstmt.setString(3, cbean.getIntegrated_classification());
112. pstmt.setString(4, cbean.getBosshead());
113. pstmt.setString(5, cbean.getContact_phone());
114. pstmt.setString(6, cbean.getOrder_frequency());
115. pstmt.setString(7, cbean.getContact_address());
116. pstmt.setInt(8, cbean.getUser_id());
117. pstmt.setString(9, "gyyc00000");//
118. pstmt.setString(10, "95000000");//
119. pstmt.setString(11, getToday());
120. pstmt.setInt(12, cbean.getSms_rec_flag());
121. pstmt.setInt(13, cbean.getRegion_type());
122.
123.
124. pstmt.addBatch();
125.
126. }
127. int[] tt = pstmt.executeBatch();
128. System.out.println("insert : " + tt.length);
129.
130. //提交，设置事务初始值
131. conn.commit();
132. conn.setAutoCommit(true);
133.
134. //插入成功，返回
135. return tt.length;
136.
137. }catch(SQLException ex){
138. try{
139. //提交失败，执行回滚操作
140. conn.rollback();
141.
142. }catch (SQLException e) {
143. e.printStackTrace();
144. System.err.println("insertNewInfo回滚执行失败!!!");
145. }
146.
147. ex.printStackTrace();
148. System.err.println("insertNewInfo执行失败");
149.
150. //插入失败返回标志0
151. return 0;
152.
153. }finally {
154. try{
155. //关闭资源
156. if(pstmt != null)pstmt.close();
157. if(conn != null)conn.close();
158.
159. }catch (SQLException e) {
160. e.printStackTrace();
161. System.err.println("资源关闭失败!!!");
162. }
163. }
164.}
/**
* 更新数据库已有的customer信息
* @param List<CustomerBean>
* @return
*/
public int updateExistsInfo(List<CustomerBean> updateList){
//查询的SQL语句
String sql = "update t_customer set LICENSE_KEY=?,CORPORATE_NAME=?,INTEGRATED_CLASSIFICATION=?,BOSSHEAD=?," +
"CONTACT_PHONE=?,ORDER_FREQUENCY=?,CONTACT_ADDRESS=?,USER_ID=? where CUSTOMER_ID=?" ;
//插入需要的数据库对象
Connection conn = null;
PreparedStatement pstmt = null;
try {
conn = new DBSource().getConnection();
//设置事务属性
conn.setAutoCommit(false);
pstmt = conn.prepareStatement(sql,ResultSet.TYPE_SCROLL_INSENSITIVE,ResultSet.CONCUR_READ_ONLY);
for(CustomerBean cbean : updateList){
pstmt.setString(1, cbean.getLicense_key());
pstmt.setString(2, cbean.getCorporate_name());
pstmt.setString(3, cbean.getIntegrated_classification());
pstmt.setString(4, cbean.getBosshead());
pstmt.setString(5, cbean.getContact_phone());
pstmt.setString(6, cbean.getOrder_frequency());
pstmt.setString(7, cbean.getContact_address());
pstmt.setInt (8, cbean.getUser_id());
pstmt.setInt (9, cbean.getCustomer_id());
pstmt.addBatch();
}
int[] tt = pstmt.executeBatch();
System.out.println("update : " + tt.length);
//提交，设置事务初始值
conn.commit();
conn.setAutoCommit(true);
//插入成功，返回
return tt.length;
}catch(SQLException ex){
try{
//提交失败，执行回滚操作
conn.rollback();
}catch (SQLException e) {
e.printStackTrace();
System.err.println("updateExistsInfo回滚执行失败!!!");
}
ex.printStackTrace();
System.err.println("updateExistsInfo执行失败");
//插入失败返回标志0
return 0;
}finally {
try{
//关闭资源
if(pstmt != null)pstmt.close();
if(conn != null)conn.close();
}catch (SQLException e) {
e.printStackTrace();
System.err.println("资源关闭失败!!!");
}
}
}
/**
* 插入数据中没有的customer信息
* @param List<CustomerBean>
* @return
*/
public int insertNewInfo(List<CustomerBean> insertList){
//查询的SQL语句
String sql = "insert into t_customer(CUSTOMER_ID," +
"LICENSE_KEY,CORPORATE_NAME,INTEGRATED_CLASSIFICATION,BOSSHEAD,CONTACT_PHONE," +
"ORDER_FREQUENCY,CONTACT_ADDRESS,USER_ID,CUSTOMER_NUM,CUSTOMER_CODING," +
"INVESTIGATION_TIME,SMS_REC_FLAG,WAP_FLAG,PRICE_GATHERING_FLAG,SOCIETY_STOCK_FLAG," +
"REGION_TYPE)" +
"VALUES(CUSTOMER.NEXTVAL," +
"?,?,?,?,?," +
"?,?,?,?,?," +
"TO_DATE(?,'YYYY-MM-DD'),?,0,0,0," +
"?)" ;
//插入需要的数据库对象
Connection conn = null;
PreparedStatement pstmt = null;
try {
conn = new DBSource().getConnection();
//设置事务属性
conn.setAutoCommit(false);
pstmt = conn.prepareStatement(sql,ResultSet.TYPE_SCROLL_INSENSITIVE,ResultSet.CONCUR_READ_ONLY);
for(CustomerBean cbean : insertList){
pstmt.setString(1, cbean.getLicense_key());
pstmt.setString(2, cbean.getCorporate_name());
pstmt.setString(3, cbean.getIntegrated_classification());
pstmt.setString(4, cbean.getBosshead());
pstmt.setString(5, cbean.getContact_phone());
pstmt.setString(6, cbean.getOrder_frequency());
pstmt.setString(7, cbean.getContact_address());
pstmt.setInt(8, cbean.getUser_id());
pstmt.setString(9, "gyyc00000");//
pstmt.setString(10, "95000000");//
pstmt.setString(11, getToday());
pstmt.setInt(12, cbean.getSms_rec_flag());
pstmt.setInt(13, cbean.getRegion_type());
pstmt.addBatch();
}
int[] tt = pstmt.executeBatch();
System.out.println("insert : " + tt.length);
//提交，设置事务初始值
conn.commit();
conn.setAutoCommit(true);
//插入成功，返回
return tt.length;
}catch(SQLException ex){
try{
//提交失败，执行回滚操作
conn.rollback();
}catch (SQLException e) {
e.printStackTrace();
System.err.println("insertNewInfo回滚执行失败!!!");
}
ex.printStackTrace();
System.err.println("insertNewInfo执行失败");
//插入失败返回标志0
return 0;
}finally {
try{
//关闭资源
if(pstmt != null)pstmt.close();
if(conn != null)conn.close();
}catch (SQLException e) {
e.printStackTrace();
System.err.println("资源关闭失败!!!");
}
}
}
Notice:
//设置事务属性
conn.setAutoCommit(false);
pstmt = conn.prepareStatement(sql,ResultSet.TYPE_SCROLL_INSENSITIVE,ResultSet.CONCUR_READ_ONLY);
for(CustomerBean cbean : updateList){
pstmt.setString(1, cbean.getLicense_key());
...
pstmt.addBatch();
}
int[] tt = pstmt.executeBatch();
System.out.println("update : " + tt.length);
//提交，设置事务初始值
conn.commit();
conn.setAutoCommit(true);
...
package lavasoft.jdbctest;
import lavasoft.common.DBToolkit;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import java.sql.Statement;
/**
* JDBC的批量操作三种方式
*/
public class BatchExeSQLTest {
public static void main(String[] args) {
exeBatchStaticSQL();
}
/**
* 批量执行预定义模式的SQL
*/
public static void exeBatchParparedSQL() {
Connection conn = null;
try {
conn = DBToolkit.getConnection();
String sql = "insert into testdb.book (kind, name) values (?,?)";
PreparedStatement pstmt = conn.prepareStatement(sql);
pstmt.setString(1, "java");
pstmt.setString(2, "jjjj");
pstmt.addBatch(); //添加一次预定义参数
pstmt.setString(1, "ccc");
pstmt.setString(2, "dddd");
pstmt.addBatch(); //再添加一次预定义参数
//批量执行预定义SQL
pstmt.executeBatch();
} catch (SQLException e) {
e.printStackTrace();
} finally {
DBToolkit.closeConnection(conn);
}
}
/**
* 批量执行混合模式的SQL、有预定义的，还有静态的
*/
public static void exeBatchMixedSQL() {
Connection conn = null;
try {
conn = DBToolkit.getConnection();
String sql = "insert into testdb.book (kind, name) values (?,?)";
PreparedStatement pstmt = conn.prepareStatement(sql);
pstmt.setString(1, "java");
pstmt.setString(2, "jjjj");
pstmt.addBatch(); //添加一次预定义参数
pstmt.setString(1, "ccc");
pstmt.setString(2, "dddd");
pstmt.addBatch(); //再添加一次预定义参数
//添加一次静态SQL
pstmt.addBatch("update testdb.book set kind = 'JAVA' where kind='java'");
//批量执行预定义SQL
pstmt.executeBatch();
} catch (SQLException e) {
e.printStackTrace();
} finally {
DBToolkit.closeConnection(conn);
}
}
/**
* 执行批量静态的SQL
*/
public static void exeBatchStaticSQL() {
Connection conn = null;
try {
conn = DBToolkit.getConnection();
Statement stmt = conn.createStatement();
//连续添加多条静态SQL
stmt.addBatch("insert into testdb.book (kind, name) values ('java', 'java in aciton')");
stmt.addBatch("insert into testdb.book (kind, name) values ('c', 'c in aciton')");
stmt.addBatch("delete from testdb.book where kind ='C#'");
stmt.addBatch("update testdb.book set kind = 'JAVA' where kind='java'");
// stmt.addBatch("select count(*) from testdb.book"); //批量执行不支持Select语句
//执行批量执行
stmt.executeBatch();
} catch (SQLException e) {
e.printStackTrace();
} finally {
DBToolkit.closeConnection(conn);
}
}
}
注意：JDBC的批处理不能加入select语句，否则会抛异常：
java.sql.BatchUpdateException: Can not issue SELECT via executeUpdate().
at com.mysql.jdbc.StatementImpl.executeBatch(StatementImpl.java:1007)
转载自:http://lavasoft.blog.51cto.com/62575/238651
批量更新,插入代码
1./**
2. * 更新数据库已有的customer信息
3. * @param List<CustomerBean>
4. * @return
5. */
6.public int updateExistsInfo(List<CustomerBean> updateList){
7.
8. //查询的SQL语句
9. String sql = "update t_customer set LICENSE_KEY=?,CORPORATE_NAME=?,INTEGRATED_CLASSIFICATION=?,BOSSHEAD=?," +
10. "CONTACT_PHONE=?,ORDER_FREQUENCY=?,CONTACT_ADDRESS=?,USER_ID=? where CUSTOMER_ID=?" ;
11.
12. //插入需要的数据库对象
13. Connection conn = null;
14. PreparedStatement pstmt = null;
15.
16. try {
17. conn = new DBSource().getConnection();
18.
19. //设置事务属性
20. conn.setAutoCommit(false);
21.
22. pstmt = conn.prepareStatement(sql,ResultSet.TYPE_SCROLL_INSENSITIVE,ResultSet.CONCUR_READ_ONLY);
23.
24. for(CustomerBean cbean : updateList){
25. pstmt.setString(1, cbean.getLicense_key());
26. pstmt.setString(2, cbean.getCorporate_name());
27. pstmt.setString(3, cbean.getIntegrated_classification());
28. pstmt.setString(4, cbean.getBosshead());
29. pstmt.setString(5, cbean.getContact_phone());
30. pstmt.setString(6, cbean.getOrder_frequency());
31. pstmt.setString(7, cbean.getContact_address());
32. pstmt.setInt (8, cbean.getUser_id());
33. pstmt.setInt (9, cbean.getCustomer_id());
34.
35. pstmt.addBatch();
36.
37. }
38. int[] tt = pstmt.executeBatch();
39. System.out.println("update : " + tt.length);
40.
41. //提交，设置事务初始值
42. conn.commit();
43. conn.setAutoCommit(true);
44.
45. //插入成功，返回
46. return tt.length;
47.
48. }catch(SQLException ex){
49. try{
50. //提交失败，执行回滚操作
51. conn.rollback();
52.
53. }catch (SQLException e) {
54. e.printStackTrace();
55. System.err.println("updateExistsInfo回滚执行失败!!!");
56. }
57.
58. ex.printStackTrace();
59. System.err.println("updateExistsInfo执行失败");
60.
61. //插入失败返回标志0
62. return 0;
63.
64. }finally {
65. try{
66. //关闭资源
67. if(pstmt != null)pstmt.close();
68. if(conn != null)conn.close();
69.
70. }catch (SQLException e) {
71. e.printStackTrace();
72. System.err.println("资源关闭失败!!!");
73. }
74. }
75.}
76.
77./**
78. * 插入数据中没有的customer信息
79. * @param List<CustomerBean>
80. * @return
81. */
82.public int insertNewInfo(List<CustomerBean> insertList){
83.
84. //查询的SQL语句
85. String sql = "insert into t_customer(CUSTOMER_ID," +
86. "LICENSE_KEY,CORPORATE_NAME,INTEGRATED_CLASSIFICATION,BOSSHEAD,CONTACT_PHONE," +
87. "ORDER_FREQUENCY,CONTACT_ADDRESS,USER_ID,CUSTOMER_NUM,CUSTOMER_CODING," +
88. "INVESTIGATION_TIME,SMS_REC_FLAG,WAP_FLAG,PRICE_GATHERING_FLAG,SOCIETY_STOCK_FLAG," +
89. "REGION_TYPE)" +
90. "VALUES(CUSTOMER.NEXTVAL," +
91. "?,?,?,?,?," +
92. "?,?,?,?,?," +
93. "TO_DATE(?,'YYYY-MM-DD'),?,0,0,0," +
94. "?)" ;
95.
96. //插入需要的数据库对象
97. Connection conn = null;
98. PreparedStatement pstmt = null;
99.
100. try {
101. conn = new DBSource().getConnection();
102.
103. //设置事务属性
104. conn.setAutoCommit(false);
105.
106. pstmt = conn.prepareStatement(sql,ResultSet.TYPE_SCROLL_INSENSITIVE,ResultSet.CONCUR_READ_ONLY);
107.
108. for(CustomerBean cbean : insertList){
109. pstmt.setString(1, cbean.getLicense_key());
110. pstmt.setString(2, cbean.getCorporate_name());
111. pstmt.setString(3, cbean.getIntegrated_classification());
112. pstmt.setString(4, cbean.getBosshead());
113. pstmt.setString(5, cbean.getContact_phone());
114. pstmt.setString(6, cbean.getOrder_frequency());
115. pstmt.setString(7, cbean.getContact_address());
116. pstmt.setInt(8, cbean.getUser_id());
117. pstmt.setString(9, "gyyc00000");//
118. pstmt.setString(10, "95000000");//
119. pstmt.setString(11, getToday());
120. pstmt.setInt(12, cbean.getSms_rec_flag());
121. pstmt.setInt(13, cbean.getRegion_type());
122.
123.
124. pstmt.addBatch();
125.
126. }
127. int[] tt = pstmt.executeBatch();
128. System.out.println("insert : " + tt.length);
129.
130. //提交，设置事务初始值
131. conn.commit();
132. conn.setAutoCommit(true);
133.
134. //插入成功，返回
135. return tt.length;
136.
137. }catch(SQLException ex){
138. try{
139. //提交失败，执行回滚操作
140. conn.rollback();
141.
142. }catch (SQLException e) {
143. e.printStackTrace();
144. System.err.println("insertNewInfo回滚执行失败!!!");
145. }
146.
147. ex.printStackTrace();
148. System.err.println("insertNewInfo执行失败");
149.
150. //插入失败返回标志0
151. return 0;
152.
153. }finally {
154. try{
155. //关闭资源
156. if(pstmt != null)pstmt.close();
157. if(conn != null)conn.close();
158.
159. }catch (SQLException e) {
160. e.printStackTrace();
161. System.err.println("资源关闭失败!!!");
162. }
163. }
164.}
/**
* 更新数据库已有的customer信息
* @param List<CustomerBean>
* @return
*/
public int updateExistsInfo(List<CustomerBean> updateList){
//查询的SQL语句
String sql = "update t_customer set LICENSE_KEY=?,CORPORATE_NAME=?,INTEGRATED_CLASSIFICATION=?,BOSSHEAD=?," +
"CONTACT_PHONE=?,ORDER_FREQUENCY=?,CONTACT_ADDRESS=?,USER_ID=? where CUSTOMER_ID=?" ;
//插入需要的数据库对象
Connection conn = null;
PreparedStatement pstmt = null;
try {
conn = new DBSource().getConnection();
//设置事务属性
conn.setAutoCommit(false);
pstmt = conn.prepareStatement(sql,ResultSet.TYPE_SCROLL_INSENSITIVE,ResultSet.CONCUR_READ_ONLY);
for(CustomerBean cbean : updateList){
pstmt.setString(1, cbean.getLicense_key());
pstmt.setString(2, cbean.getCorporate_name());
pstmt.setString(3, cbean.getIntegrated_classification());
pstmt.setString(4, cbean.getBosshead());
pstmt.setString(5, cbean.getContact_phone());
pstmt.setString(6, cbean.getOrder_frequency());
pstmt.setString(7, cbean.getContact_address());
pstmt.setInt (8, cbean.getUser_id());
pstmt.setInt (9, cbean.getCustomer_id());
pstmt.addBatch();
}
int[] tt = pstmt.executeBatch();
System.out.println("update : " + tt.length);
//提交，设置事务初始值
conn.commit();
conn.setAutoCommit(true);
//插入成功，返回
return tt.length;
}catch(SQLException ex){
try{
//提交失败，执行回滚操作
conn.rollback();
}catch (SQLException e) {
e.printStackTrace();
System.err.println("updateExistsInfo回滚执行失败!!!");
}
ex.printStackTrace();
System.err.println("updateExistsInfo执行失败");
//插入失败返回标志0
return 0;
}finally {
try{
//关闭资源
if(pstmt != null)pstmt.close();
if(conn != null)conn.close();
}catch (SQLException e) {
e.printStackTrace();
System.err.println("资源关闭失败!!!");
}
}
}
/**
* 插入数据中没有的customer信息
* @param List<CustomerBean>
* @return
*/
public int insertNewInfo(List<CustomerBean> insertList){
//查询的SQL语句
String sql = "insert into t_customer(CUSTOMER_ID," +
"LICENSE_KEY,CORPORATE_NAME,INTEGRATED_CLASSIFICATION,BOSSHEAD,CONTACT_PHONE," +
"ORDER_FREQUENCY,CONTACT_ADDRESS,USER_ID,CUSTOMER_NUM,CUSTOMER_CODING," +
"INVESTIGATION_TIME,SMS_REC_FLAG,WAP_FLAG,PRICE_GATHERING_FLAG,SOCIETY_STOCK_FLAG," +
"REGION_TYPE)" +
"VALUES(CUSTOMER.NEXTVAL," +
"?,?,?,?,?," +
"?,?,?,?,?," +
"TO_DATE(?,'YYYY-MM-DD'),?,0,0,0," +
"?)" ;
//插入需要的数据库对象
Connection conn = null;
PreparedStatement pstmt = null;
try {
conn = new DBSource().getConnection();
//设置事务属性
conn.setAutoCommit(false);
pstmt = conn.prepareStatement(sql,ResultSet.TYPE_SCROLL_INSENSITIVE,ResultSet.CONCUR_READ_ONLY);
for(CustomerBean cbean : insertList){
pstmt.setString(1, cbean.getLicense_key());
pstmt.setString(2, cbean.getCorporate_name());
pstmt.setString(3, cbean.getIntegrated_classification());
pstmt.setString(4, cbean.getBosshead());
pstmt.setString(5, cbean.getContact_phone());
pstmt.setString(6, cbean.getOrder_frequency());
pstmt.setString(7, cbean.getContact_address());
pstmt.setInt(8, cbean.getUser_id());
pstmt.setString(9, "gyyc00000");//
pstmt.setString(10, "95000000");//
pstmt.setString(11, getToday());
pstmt.setInt(12, cbean.getSms_rec_flag());
pstmt.setInt(13, cbean.getRegion_type());
pstmt.addBatch();
}
int[] tt = pstmt.executeBatch();
System.out.println("insert : " + tt.length);
//提交，设置事务初始值
conn.commit();
conn.setAutoCommit(true);
//插入成功，返回
return tt.length;
}catch(SQLException ex){
try{
//提交失败，执行回滚操作
conn.rollback();
}catch (SQLException e) {
e.printStackTrace();
System.err.println("insertNewInfo回滚执行失败!!!");
}
ex.printStackTrace();
System.err.println("insertNewInfo执行失败");
//插入失败返回标志0
return 0;
}finally {
try{
//关闭资源
if(pstmt != null)pstmt.close();
if(conn != null)conn.close();
}catch (SQLException e) {
e.printStackTrace();
System.err.println("资源关闭失败!!!");
}
}
}
Notice:
//设置事务属性
conn.setAutoCommit(false);
pstmt = conn.prepareStatement(sql,ResultSet.TYPE_SCROLL_INSENSITIVE,ResultSet.CONCUR_READ_ONLY);
for(CustomerBean cbean : updateList){
pstmt.setString(1, cbean.getLicense_key());
...
pstmt.addBatch();
}
int[] tt = pstmt.executeBatch();
System.out.println("update : " + tt.length);
//提交，设置事务初始值
conn.commit();
conn.setAutoCommit(true);
...