/**
* 注入数据源, 该数据源在Spring配置文件中配置
* 在注入时初始化这两个模板
* @param dataSource
* Method create author: yanwei
* Method create dateTime: 2011-11-2 下午03:43:13
* Method update author:
* Method update dateTime:
*/
@Resource
public void setDataSource(DataSource dataSource) {
this.dataSource = dataSource
jdbcTemplate = new JdbcTemplate(dataSource)
simpleJdbcTemplate = new SimpleJdbcTemplate(dataSource)
}
2,获取表结构信息。
1 /**
2 * 获取表结构信息
3 * @param tableName 表名
4 * @return
5 * @throws Exception
6 * Method create author: yanwei
7 * Method create dateTime: 2011-12-21 下午01:01:17
8 * Method update author:
9 * Method update dateTime:
10 */
11 public List<DsClientColumnInfo>getDsTableColumnInfo(String tableName) throws DataAccessFailureException{
12
13 ResultSet resultSet = null
14 Connection connection = null
15 java.util.List<DsClientColumnInfo>clientTableInfos = new ArrayList<DsClientColumnInfo>()
16 try {
17 connection = this.jdbcTemplate.getDataSource().getConnection()
18 //获得列的信息
19 resultSet = connection.getMetaData().getColumns(null, null, tableName, null)
20 while (resultSet.next()) {
21 //获得字段名称
22 String name = resultSet.getString("COLUMN_NAME")
23 //获得字段类型名称
24 String type = resultSet.getString("TYPE_NAME")
25 //获得字段大小
26 int size = resultSet.getInt("COLUMN_SIZE")
27 //获得字段备注
28 String remark = resultSet.getString("REMARKS")
29 DsClientColumnInfo info = new DsClientColumnInfo(null, null, null, name, remark, size, type, "false")
30 clientTableInfos.add(info)
31 }
32
33 //获得主键的信息
34 resultSet = connection.getMetaData().getPrimaryKeys(null, null, tableName)
35 while(resultSet.next()){
36 String primaryKey = resultSet.getString("COLUMN_NAME")
37 //设置是否为主键
38 for (DsClientColumnInfo dsClientColumnInfo : clientTableInfos) {
39 if(primaryKey != null &&primaryKey.equals(dsClientColumnInfo.getClientColumnCode()))
40 dsClientColumnInfo.setIsParmaryKey("true")
41 else
42 dsClientColumnInfo.setIsParmaryKey("false")
43 }
44 }
45
46 //获得外键信息
47 resultSet = connection.getMetaData().getImportedKeys(null, null, tableName)
48 while(resultSet.next()){
49 String exportedKey = resultSet.getString("FKCOLUMN_NAME")
50 //设置是否是外键
51 for (DsClientColumnInfo dsClientColumnInfo : clientTableInfos) {
52 if(exportedKey != null &&exportedKey.equals(dsClientColumnInfo.getClientColumnCode()))
53 dsClientColumnInfo.setIsImportedKey("true")
54 else
55 dsClientColumnInfo.setIsImportedKey("false")
56 }
57 }
58
59
60 } catch (Exception e) {
61 e.printStackTrace()
62 throw new RuntimeException("获取字段信息的时候失败,请将问题反映到维护人员。" + e.getMessage(), e)
63 } finally{
64 if(resultSet != null)
65 try {
66 resultSet.close()
67 } catch (SQLException e) {
68 e.printStackTrace()
69throw new DataAccessFailureException("关闭结果集resultSet失败。",e)
70 }finally{
71 if(connection != null)
72 try {
73 connection.close()
74 } catch (SQLException e) {
75 e.printStackTrace()
76throw new DataAccessFailureException("关闭连接connection失败。",e)
77 }
78 }
79 }
80
81 Set set = new HashSet()
82 set.addAll(clientTableInfos)
83 clientTableInfos.clear()
84 clientTableInfos.addAll(set)
85 return clientTableInfos
86 }
3,获得数据库中所有的表。
1 /**
2 * 获得数据库中所有的表
3 * @return
4 * Method create author: yanwei
5 * Method create dateTime: 2012-1-5 上午11:23:54
6 * Method update author:
7 * Method update dateTime:
8 * @throws SQLException
9 */
10 public Map<String, String>getDatabaseTables() throws DataAccessFailureException{
11 ResultSet resultSet = null
12 Connection connection = null
13 Map<String, String>map = new HashMap<String, String>()
14 try {
15 String[] types = {"TABLE"}
16 connection = this.jdbcTemplate.getDataSource().getConnection()
17 String databaseName = SynXmlAnalysis.getElementValueByName(DATABASE_NAME)
18 resultSet = connection.getMetaData().getTables(null, databaseName, null, types)
19 while(resultSet.next()){
20 String tableName = resultSet.getString("TABLE_NAME")
21 String remark = resultSet.getString("REMARKS")
22 map.put(tableName, remark)
23 }
24 } catch (SQLException e) {
25 e.printStackTrace()
26 throw new DataAccessFailureException(e)
27 }catch (Exception e) {
28 e.printStackTrace()
29 }finally{
30 if(resultSet != null)
31 try {
32 resultSet.close()
33 } catch (SQLException e) {
34 e.printStackTrace()
35throw new DataAccessFailureException("关闭结果集resultSet失败。",e)
36 }finally{
37 if(connection != null)
38 try {
39 connection.close()
40 } catch (SQLException e) {
41 e.printStackTrace()
42throw new DataAccessFailureException("关闭连接connection失败。",e)
43 }
44 }
45
46 }
47 return map
48 }
1、打开Microsoft SQL Server 2012,选中需要查询所有表的数据库。
2、选中需要查询的表后,点击左上角的“新建查询”,如图。
3、点击“新建查询”后,会在右边d出一个编辑框,我们需要在这里编写sql语句,来查询该数据库下的所有表结构。
4、编写sql语句,点击“执行”,当然,这表语句我们可以根据实际情况,来改变条件只查询需要的表名。
5、这时,会在右下方出现最终的查询结果,name即该库下所有的表名。
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