importjava.sql.Connection;importjava.sql.PreparedStatement;importjava.sql.SQLException;importjava.sql.Clob;importjava.io.StringReader;publicclassStringToClobExample{publicvoidinsertStringAsClob(Stringdata){Connectionconn=null;PreparedStatementps=null;try{conn=DriverManager.getConnection("jdbc:mysql://localhost:330...
/** Cache the hash code for the string */ private int hash; // Default to 0 1. 2. 3. 4. 5. 6. 7. 由以上的代码可以看出, 在Java中String类其实就是对字符数组的封装。JDK6中, value是String封装的数组,offset是String在这个value数组中的起始位置,count是String所占的字符的个数。在 JDK7中...
at com.oceanbase.jdbc.JDBC4ResultSet.getString(JDBC4ResultSet.java:1311) at com.oceanbase.jdbc.JDBC4ResultSet.getString(JDBC4ResultSet.java:1344) at com.alibaba.druid.filter.FilterChainImpl.resultSet_getString(FilterChainImpl.java:1129) at com.alibaba.druid.filter.stat.StatFilter.resultSet_getS...
这在SO上的另一个主题中进行了解释：Java: How to insert CLOB into oracle database ...
public boolean update(String name,String content){ int result = 0; Connection conn = ConnectionUntils.getInstance(); String sql = "update temp set temp_clob=? where name=?"; PreparedStatement pst =null; try { CLOB clob = ***.sql.CLOB.createTemporary(conn, false,***.sql.CLOB.DURATION_...
Java读取Oracle大字段数据(CLOB)的2种方法 Oracle数据库中有一个字段是CLOB类型,使用java 解析. 1.使用java解析clob类型内容 public String clobToString(Clob c) { StringBuffer sb = new StringBuffer(1024); Reader instream = null; try { instream = c.getCharacterStream(); ...
IOUtils.toByteArray(binaryStream);byte[] blobAsBytes = lobHandler.getBlobAsBytes(resultSet,5);Stringbytes=newString(blobAsBytes); HashMap<String, String> map =newHashMap<>(6); map.put("ID_", resultSet.getString(1)); map.put("REV_", resultSet.getString(2)); ...
"流处理读取CLOB:\n"+result); } 其中Clob 类型转换为String的自定义方法如下 private Stri ...
publicbooleanupdate(String name,String content){intresult=0;Connectionconn=ConnectionUntils.getInstance();Stringsql="update temp set temp_clob=? where name=?";PreparedStatementpst=null;try{CLOBclob=oracle.sql.CLOB.createTemporary(conn,false,oracle.sql.CLOB.DURATION_SESSION); clob.setString(1L, conten...
注意,成功修改为clob类型后,如果原先插入方法仍然报字符超出长度的错误,则应该使用java原生的PreparedStatement .setString()。。。execute()来插入数据 附带mybatis操作clob类型字段的方法: 插入语句: <insertid="insertEventSupplyInfo"parameterType="ext.accs.cam.entity.CamEventSupplyInfo">insert into ACCS_EVENT_...