spring jdbc 获取 clob:
String sql = "select * from user where rownum = 1";
logger.debug("sql: " + sql);
final LobHandler lobHandler = new OracleLobHandler();
List userList = jdbcTemplateAsd.query(sql,
new RowMapper() {
public Object mapRow(ResultSet rs, int i) throws SQLException {
Map results = new HashMap();
String userProfile = lobHandler.getClobAsString(rs, "USER_PROFILE");
logger.debug("userProfile:" + userProfile);
results.put("userProfile", userProfile);
return results;
}
});
String jsonString = (String) ((Map) userList.get(0)).get("userProfile");
User user = JSONObject.parseObject(jsonString, User.class);
logger.debug("user:" + user);
ResultSet 获取 clob: private void clobExport() throws ClassNotFoundException, SQLException,
IOException {
CLOB clob = null;
String sql = "select * from USER where lower(CLIENT_ID) = '
[email protected]' order by START_TIME desc";
DriverManager.registerDriver(new OracleDriver());
Connection conn = DriverManager.getConnection(url, user, pwd);
PreparedStatement stmt = conn.prepareStatement(sql);
ResultSet rs = stmt.executeQuery();
String content = "";
if (rs.next()) {
clob = (oracle.sql.CLOB) rs.getClob("USER_PROFILE");
content = ClobToString(clob);
}
stmt.close();
conn.close();
System.out.println(content);
}
public String ClobToString(CLOB clob) throws SQLException, IOException {
String reString = "";
Reader is = clob.getCharacterStream();
BufferedReader br = new BufferedReader(is);
String s = br.readLine();
StringBuffer sb = new StringBuffer();
while (s != null) {
sb.append(s);
s = br.readLine();
}
reString = sb.toString();
return reString;
}
public static void main(String[] args) throws IOException,
ClassNotFoundException, SQLException {
ClobTest clobtest = new ClobTest();
clobtest.clobExport();
}
apache ToStringBuilder:public String toString(){
return ToStringBuilder.reflectionToString(this, ToStringStyle.MULTI_LINE_STYLE);
}