动态获取数据库表中的字段名

　　动态获取数据库中表的字段的名：

public static void getPrefenceColumn(PortletRequest portletRequest)
        throws NumberFormatException, PortalException, SystemException {
        
        PortletPreferences preferences = portletRequest.getPreferences();
　　　　　//这个值是需要setValue();
        String columnsIds = preferences.getValue("default.display.columns", "");
        List<CompanyColumnDefinition> tableHeader = null;
        if (!columnsIds.equals(StringPool.BLANK)) {
            String[] columnIdsArray = columnsIds.split(StringPool.COMMA);
            tableHeader = new ArrayList<CompanyColumnDefinition>();
            for (int i = 0; i < columnIdsArray.length; i++) {
                CompanyColumnDefinition companyColumn = CompanyColumnDefinitionLocalServiceUtil
                .getCompanyColumnDefinition(Long.valueOf(columnIdsArray[i]));
                tableHeader.add(companyColumn);
            }
        }
        portletRequest.setAttribute("tableHeader", tableHeader);
    }

2：就是setValue

    public void defaultDisplayColumn(PortletRequest renderRequest)
            throws ReadOnlyException, SystemException, ValidatorException,
            IOException, NumberFormatException, PortalException {
        long companyId = PortalUtil.getCompanyId(renderRequest);
        PortletPreferences preferences = renderRequest.getPreferences();
        String columnsIds = preferences.getValue("default.display.columns", "");
        // 这些字段是不是直接在页面上显示。
        String columns = "employeeNo,employeeName,positionId,employeeSex,employeeAge,mobilePhone";
        if (columnsIds.equals("")) {
            String tableName = TableConst.CRM_Employee;
            String[] columnsArray = columns.split(StringPool.COMMA);
            StringBuffer columnIds = new StringBuffer();
            for (int i = 0; i < columnsArray.length; i++) {
                CompanyColumnDefinition companyColumn = CompanyColumnDefinitionLocalServiceUtil
                        .searchByColumnName(companyId, tableName,
                                columnsArray[i]);

                columnIds.append(
                        String.valueOf(companyColumn
                                .getCompanyColumnDefinitionId())).append(
                        StringPool.COMMA);
            }

            preferences.setValue("default.display.columns",
                    columnIds.toString());
            if (SessionErrors.isEmpty(renderRequest)) {
                preferences.store();
            }
        }
    }

怎么动态获得字段的值：

public static Map<String, String> getEmployeeValue(PortletRequest portletRequest, Long employeeId) 
        throws PortalException, SystemException {

        Map<String, String> entityValueMap = null;
        long companyId = PortalUtil.getCompanyId(portletRequest);
        if (employeeId > 0){
            Employee employee = EmployeeLocalServiceUtil.getEmployee(employeeId);
            if (employee != null){
                List<CompanyColumnDefinition> companyColumns = CompanyColumnDefinitionLocalServiceUtil
                        .searchByTableName(companyId, TableConst.CRM_Employee, true);
                entityValueMap = new HashMap<String, String>();
                for (CompanyColumnDefinition companyColumn : companyColumns) {
                    String columnName = companyColumn.getColumnName();
                    if (columnName.equals("employeeName")) {
                        entityValueMap.put(columnName, employee.getEmployeeName());
                    } else if (columnName.equals("employeeNo")) {
                        entityValueMap.put(columnName, employee.getEmployeeNo());
                    } else if (columnName.equals("employeeAge")) {
                        entityValueMap.put(columnName, employee.getEmployeeAge() != 0 
                                    ? String.valueOf(employee.getEmployeeAge()) : "");
                    } else if (columnName.equals("employeeSex")) {
                        entityValueMap.put(columnName, employee.getEmployeeSex());
                    } else if (columnName.equals("identityCard")) {
                        entityValueMap.put(columnName, employee.getIdentityCard());
                    } else if (columnName.equals("nation")) {
                        entityValueMap.put(columnName, employee.getNation());
                    } else if (columnName.equals("category")) {
                        entityValueMap.put(columnName, employee.getCategory());
                    } else if (columnName.equals("policitalStatus")) {
                        entityValueMap.put(columnName, employee.getPolicitalStatus());
                    } else if (columnName.equals("isMarry")) {
                        entityValueMap.put(columnName, employee.getIsMarry());
                    } else if (columnName.equals("employeeType")) {
                        entityValueMap.put(columnName, employee.getEmployeeType());
                    } else if (columnName.equals("mobilePhone")) {
                        entityValueMap.put(columnName, employee.getMobilePhone());
                    } else if (columnName.equals("workPhone")) {
                        entityValueMap.put(columnName, employee.getWorkPhone());
                    } else if (columnName.equals("email")) {
                        entityValueMap.put(columnName, employee.getEmail());
                    } else if (columnName.equals("QQ")) {
                        entityValueMap.put(columnName, employee.getQQ());
                    } else if (columnName.equals("MSN")) {
                        entityValueMap.put(columnName, employee.getMSN());
                    } else if (columnName.equals("zodiac")) {
                        entityValueMap.put(columnName, employee.getZodiac());
                    } else if (columnName.equals("constellation")) {
                        entityValueMap.put(columnName, employee.getConstellation());
                    } else if (columnName.equals("microblog")) {
                        entityValueMap.put(columnName, employee.getMicroblog());
                    } else if (columnName.equals("interest")) {
                        entityValueMap.put(columnName, employee.getInterest());
                    } else if (columnName.equals("homePhone")) {
                        entityValueMap.put(columnName, employee.getHomePhone());
                    } else if (columnName.equals("emergencyPhone")) {
                        entityValueMap.put(columnName, employee.getEmergencyPhone());
                    } else if (columnName.equals("educationlevel")) {
                        entityValueMap.put(columnName, employee.getEducationlevel());
                    } else if (columnName.equals("degree")) {
                        entityValueMap.put(columnName, employee.getDegree());
                    } else if (columnName.equals("graduatedUniversity")) {
                        entityValueMap.put(columnName, employee.getGraduatedUniversity());
                    } else if (columnName.equals("specialty")) {
                        entityValueMap.put(columnName, employee.getSpecialty());
                    } else if (columnName.equals("householdRegister")) {
                        entityValueMap.put(columnName, employee.getHouseholdRegister());
                    } else if (columnName.equals("technicalTitle")) {
                        entityValueMap.put(columnName, employee.getTechnicalTitle());
                    } else if (columnName.equals("dimissionType")) {
                        entityValueMap.put(columnName, employee.getDimissionType());
                    } else if (columnName.equals("recruitmentResource")) {
                        entityValueMap.put(columnName, employee.getRecruitmentResource());
                    } else if (columnName.equals("wageAccount")) {
                        entityValueMap.put(columnName, employee.getWageAccount());
                    } else if (columnName.equals("healthCareAccount")) {
                        entityValueMap.put(columnName, employee.getHealthCareAccount());
                    } else if (columnName.equals("accumulationFundAccount")) {
                        entityValueMap.put(columnName, employee.getAccumulationFundAccount());
                    } else if (columnName.equals("unemploymentInsurance")) {
                        entityValueMap.put(columnName, employee.getUnemploymentInsurance());
                    } else if (columnName.equals("socialInsurance")) {
                        entityValueMap.put(columnName, employee.getSocialInsurance());
                    } else if (columnName.equals("endowmentInsurance")) {
                        entityValueMap.put(columnName, employee.getEndowmentInsurance());
                    } else if (columnName.equals("homeAddress")) {
                        entityValueMap.put(columnName, employee.getHomeAddress());
                    } else if (columnName.equals("archivesAddress")) {
                        entityValueMap.put(columnName, employee.getArchivesAddress());
                    } else if (columnName.equals("workAddress")) {
                        entityValueMap.put(columnName, employee.getWorkAddress());
                    } else if (columnName.equals("employeeStatus")) {
                        entityValueMap.put(columnName, employee.getEmployeeStatus());
                    } else if (columnName.equals("workAddress")) {
                        entityValueMap.put(columnName, employee.getWorkAddress());
                    } else if (columnName.equals("dimissionReason")) {
                        entityValueMap.put(columnName, employee.getDimissionReason());
                    } else if (columnName.equals("workAddress")) {
                        entityValueMap.put(columnName, employee.getWorkAddress());
                    } else if (columnName.equals("birthDate")) {
                        entityValueMap.put(columnName, DateUtil.formatDateNoHour(employee.getBirthDate()));
                    } else if (columnName.equals("internshipStart")) {
                        entityValueMap.put(columnName, DateUtil.formatDateNoHour(employee.getInternshipStart()));
                    } else if (columnName.equals("internshipEnd")) {
                        entityValueMap.put(columnName, DateUtil.formatDateNoHour(employee.getGraduatedDate()));
                    } else if (columnName.equals("graduatedDate")) {
                        entityValueMap.put(columnName, DateUtil.formatDateNoHour(employee.getInternshipEnd()));
                    } else if (columnName.equals("contractStart")) {
                        entityValueMap.put(columnName, DateUtil.formatDateNoHour(employee.getContractStart()));
                    } else if (columnName.equals("contractEnd")) {
                        entityValueMap.put(columnName, DateUtil.formatDateNoHour(employee.getContractEnd()));
                    } else if (columnName.equals("onTrialDate")) {
                        entityValueMap.put(columnName, DateUtil.formatDateNoHour(employee.getOnTrialDate()));
                    } else if (columnName.equals("offTrialDate")) {
                        entityValueMap.put(columnName, DateUtil.formatDateNoHour(employee.getOffTrialDate()));
                    } else if (columnName.equals("entryDate")) {
                        entityValueMap.put(columnName, DateUtil.formatDateNoHour(employee.getEntryDate()));
                    } else if (columnName.equals("dimissionDate")) {
                        entityValueMap.put(columnName, DateUtil.formatDateNoHour(employee.getDimissionDate()));
                    } else if (columnName.equals("createDate")) {
                        entityValueMap.put(columnName, DateUtil.formatDateNoHour(employee.getCreateDate()));
                    } else if (columnName.equals("positionId")) {
                        long positionId = employee.getPositionId();
                        if (positionId > 0) {
                            Position position = PositionLocalServiceUtil.getPosition(positionId);
                            entityValueMap.put(columnName, position.getPosition());
                        } else {
                            entityValueMap.put(columnName, StringPool.BLANK);
                        }
                    } else if (columnName.equals("departmentId")) {
                        long departmentId = employee.getDepartmentId();
                        if (departmentId > 0) {
                            Department department = DepartmentLocalServiceUtil.getDepartment(departmentId);
                            entityValueMap.put(columnName, department.getDepartmentName());
                        } else {
                            entityValueMap.put(columnName, StringPool.BLANK);
                        }
                    } else if (columnName.equals("createUserId")) {
                        long createUserId = employee.getCreateUserId();
                        if (createUserId > 0) {
                            User user = UserLocalServiceUtil.getUser(createUserId);
                            entityValueMap.put(columnName, user.getScreenName());
                        } else {
                            entityValueMap.put(columnName, StringPool.BLANK);
                        }
                    } else if (columnName.equals("strField1")){
                        entityValueMap.put(columnName, employee.getStrField1());
                    } else if (columnName.equals("strField2")){
                        entityValueMap.put(columnName, employee.getStrField2());
                    } else if (columnName.equals("strField3")){
                        entityValueMap.put(columnName, employee.getStrField3());
                    } else if (columnName.equals("strField4")){
                        entityValueMap.put(columnName, employee.getStrField4());
                    } else if (columnName.equals("strField5")){
                        entityValueMap.put(columnName, employee.getStrField5());
                    } else if (columnName.equals("strField6")){
                        entityValueMap.put(columnName, employee.getStrField6());
                    } else if (columnName.equals("strField7")){
                        entityValueMap.put(columnName, employee.getStrField5());
                    } else if (columnName.equals("strField8")){
                        entityValueMap.put(columnName, employee.getStrField6());
                    } else if (columnName.equals("textareaField1")){
                        entityValueMap.put(columnName, employee.getTextareaField1());
                    } else if (columnName.equals("textareaField2")){
                        entityValueMap.put(columnName, employee.getTextareaField2());
                    } else if (columnName.equals("textareaField3")){
                        entityValueMap.put(columnName, employee.getTextareaField1());
                    } else if (columnName.equals("textareaField4")){
                        entityValueMap.put(columnName, employee.getTextareaField2());
                    } else if (columnName.equals("floatField1")){
                        entityValueMap.put(columnName, String.valueOf(employee.getFloatField1() == 0 ? "" : employee.getFloatField1()));
                    } else if (columnName.equals("floatField2")){
                        entityValueMap.put(columnName, String.valueOf(employee.getFloatField2() == 0 ? "" : employee.getFloatField2()));
                    } else if (columnName.equals("floatField3")){
                        entityValueMap.put(columnName, String.valueOf(employee.getFloatField3() == 0 ? "" : employee.getFloatField3()));
                    } else if (columnName.equals("floatField4")){
                        entityValueMap.put(columnName, String.valueOf(employee.getFloatField4() == 0 ? "" : employee.getFloatField4()));
                    } else if (columnName.equals("dateField1")){
                        entityValueMap.put(columnName, DateUtil.formatDateNoHour(employee.getDateField1()));
                    } else if (columnName.equals("dateField2")){
                        entityValueMap.put(columnName, DateUtil.formatDateNoHour(employee.getDateField2()));
                    } else if (columnName.equals("dateField3")){
                        entityValueMap.put(columnName, DateUtil.formatDateNoHour(employee.getDateField3()));
                    } else if (columnName.equals("dateField4")){
                        entityValueMap.put(columnName, DateUtil.formatDateNoHour(employee.getDateField4()));
                    }
                }
            }
        }
        return entityValueMap;
    }