MySQL數據庫生成JavaBean

源地址：http://marsvaadin.iteye.com/blog/1465592

由於不想用正則表達式，發現另外的方法

修改代碼：

/**
	 * 通過 mysql的 show create table TABLE_NAME逆向生成Bean;
	 * 
	 * @param conn
	 * @param tname
	 * @param outputdir
	 * @param packname
	 */
	private void parseTableByShowCreate(Connection conn, String tablename, String packname, String outputdir) {
		StringBuilder classInfo = new StringBuilder("\t/**\r\n\t*");
		boolean shouldCloseConn = false;

//		String sql = "show create table " + tablename;
		String sql = "SHOW FULL FIELDS FROM " + tablename;
		ResultSet rs = null;
		try {
			rs = DBManager.query(conn, sql);
			StringBuilder fields = new StringBuilder();
			StringBuilder methods = new StringBuilder();
			int i = 0;
			while (rs.next()) {
				String fieldName = rs.getString("Field");
				String fieldType = "";
				if (rs.getString("Type").contains("(")) {
					fieldType = typeTrans(rs.getString("Type").substring(0, rs.getString("Type").indexOf("(")));
				} else {
					fieldType = typeTrans(rs.getString("Type"));
				}
				String cmt = rs.getString("Comment");
				fields.append(getFieldStr(fieldName, fieldType, cmt));
				methods.append(getMethodStr(fieldName, fieldType));

				if (i == 0) {
					classInfo.append("此類由" + getClass().getSimpleName() + "工具自動生成\r\n");

					classInfo.append("\r\n");
					classInfo.append("\t*@author \r\n");
					classInfo.append("\t*@since ");
					classInfo.append(sdf.format(new Date()));
					classInfo.append("\r\n\t*/\r\n\r\n");

				}
				i++;
			}
			classInfo.append("public class ").append(upperFirestChar(tablename)).append("{\r\n");
			classInfo.append(fields);
			classInfo.append(methods);
			classInfo.append("\r\n");
			classInfo.append("}");
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} finally {

			DBManager.close(shouldCloseConn ? conn : null, null, rs);
		}

		String packageinfo = "package " + packname + ";\r\n\r\n";
		File file = new File(outputdir, upperFirestChar(tablename) + ".java");
		System.out.println(file.getAbsolutePath());
		try {
			FileWriter fw = new FileWriter(file);
			fw.write(packageinfo);
			fw.write(classInfo.toString());
			fw.flush();
			fw.close();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}