Java 批量执行GaussDB语句executeBatch

PreparedStatement ps = conn.prepareStatement(""insert into t1 (f_int1, f_varchar1, f_varchar2) values (?, ?, ?)""); 

StringBuilder sb = new StringBuilder(500); 

for (int i = 0; i < 500; i++) { sb.append('A'); } 

String varcharStr = sb.toString();  

for (int i = 0; i < 2000; i++) { ps.setInt(1, i); ps.setString(2, varcharStr); ps.setString(3, varcharStr); ps.addBatch(); }

ps.executeBatch();