JasperReportsMultiFormatView (Spring Framework API 2.0) - Spring Framework 2.0.5 API 文档英文版

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org.springframework.web.servlet.view.jasperreports
Class JasperReportsMultiFormatView

java.lang.Object
  org.springframework.context.support.ApplicationObjectSupport
      org.springframework.web.context.support.WebApplicationObjectSupport
          org.springframework.web.servlet.view.AbstractView
              org.springframework.web.servlet.view.AbstractUrlBasedView
                  org.springframework.web.servlet.view.jasperreports.AbstractJasperReportsView
                      org.springframework.web.servlet.view.jasperreports.JasperReportsMultiFormatView

All Implemented Interfaces:: BeanNameAware, InitializingBean, ApplicationContextAware, ServletContextAware, View

public class JasperReportsMultiFormatView
extends AbstractJasperReportsView
extends AbstractJasperReportsView

Jasper Reports view class that allows for the actual rendering format to be specified at runtime using a parameter contained in the model.

This view works on the concept of a format key and a mapping key. The format key is used to pass the mapping key from your Controller to Spring through as part of the model and the mapping key is used to map a logical format to an actual JasperReports view class. For example you might add the following code to your Controller:

 Map model = new HashMap();
 model.put("format", "pdf");

Here format is the format key and pdf is the mapping key. When rendering a report, this class looks for a model parameter under the format key, which by default is format. It then uses the value of this parameter to lookup the actual View class to use. The default mappings for this lookup are:

csv - JasperReportsCsvView
html - JasperReportsHtmlView
pdf - JasperReportsPdfView
xls - JasperReportsXlsView

The format key can be changed using the formatKey property and the mapping key to view class mappings can be changed using the formatMappings property.

Since:: 1.1.5
Author:: Rob Harrop, Juergen Hoeller
See Also:: setFormatKey(java.lang.String), setFormatMappings(java.util.Properties)

Field Summary

static String DEFAULT_FORMAT_KEY
          Default value used for format key: "format"

Fields inherited from class org.springframework.web.servlet.view.jasperreports.AbstractJasperReportsView

CONTENT_DISPOSITION_INLINE, HEADER_CONTENT_DISPOSITION

Fields inherited from class org.springframework.web.servlet.view.AbstractView

DEFAULT_CONTENT_TYPE

Fields inherited from class org.springframework.context.support.ApplicationObjectSupport

logger

Constructor Summary

JasperReportsMultiFormatView()
          Creates a new JasperReportsMultiFormatView instance with a default set of mappings.

Method Summary

Properties getContentDispositionMappings()
          Return the mappings of Content-Disposition header values to mapping keys.

protected void renderReport(net.sf.jasperreports.engine.JasperPrint populatedReport, Map model, HttpServletResponse response)
          Locates the format key in the model using the configured discriminator key and uses this key to lookup the appropriate view class from the mappings.

void setContentDispositionMappings(Properties mappings)
          Set the mappings of Content-Disposition header values to mapping keys.

void setFormatKey(String formatKey)
          Set the key of the model parameter that holds the format discriminator.

void setFormatMappings(Properties mappingsWithClassNames)
          Set the mappings of format discriminators to view class names.

Methods inherited from class org.springframework.web.servlet.view.jasperreports.AbstractJasperReportsView

convertExporterParameters, convertParameterValue, convertReportData, convertToExporterParameter, exposeLocalizationContext, fillReport, getConvertedExporterParameters, getExporterParameter, getExporterParameters, getJdbcDataSource, getReport, getReportCompiler, getReportData, getReportDataTypes, initApplicationContext, onInit, postProcessReport, renderMergedOutputModel, setExporterParameters, setHeaders, setJdbcDataSource, setReportCompiler, setReportDataKey, setSubReportDataKeys, setSubReportUrls

Methods inherited from class org.springframework.web.servlet.view.AbstractUrlBasedView

afterPropertiesSet, getUrl, setUrl, toString

Methods inherited from class org.springframework.web.servlet.view.AbstractView

addStaticAttribute, createRequestContext, exposeModelAsRequestAttributes, getAttributesMap, getBeanName, getContentType, getRequestContextAttribute, getStaticAttributes, render, setAttributes, setAttributesCSV, setAttributesMap, setBeanName, setContentType, setRequestContextAttribute

Methods inherited from class org.springframework.web.context.support.WebApplicationObjectSupport

getServletContext, getTempDir, getWebApplicationContext, isContextRequired, setServletContext

Methods inherited from class org.springframework.context.support.ApplicationObjectSupport

getApplicationContext, getMessageSourceAccessor, requiredContextClass, setApplicationContext

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Summary
`static String`	`DEFAULT_FORMAT_KEY` Default value used for format key: "format"

Fields inherited from class org.springframework.web.servlet.view.jasperreports.AbstractJasperReportsView
`CONTENT_DISPOSITION_INLINE, HEADER_CONTENT_DISPOSITION`

Fields inherited from class org.springframework.web.servlet.view.AbstractView
`DEFAULT_CONTENT_TYPE`

Fields inherited from class org.springframework.context.support.ApplicationObjectSupport
`logger`

Constructor Summary
`JasperReportsMultiFormatView()` Creates a new `JasperReportsMultiFormatView` instance with a default set of mappings.

Method Summary
`Properties`	`getContentDispositionMappings()` Return the mappings of `Content-Disposition` header values to mapping keys.
`protected void`	`renderReport(net.sf.jasperreports.engine.JasperPrint populatedReport, Map model, HttpServletResponse response)` Locates the format key in the model using the configured discriminator key and uses this key to lookup the appropriate view class from the mappings.
`void`	`setContentDispositionMappings(Properties mappings)` Set the mappings of `Content-Disposition` header values to mapping keys.
`void`	`setFormatKey(String formatKey)` Set the key of the model parameter that holds the format discriminator.
`void`	`setFormatMappings(Properties mappingsWithClassNames)` Set the mappings of format discriminators to view class names.

Methods inherited from class org.springframework.web.servlet.view.jasperreports.AbstractJasperReportsView
convertExporterParameters, convertParameterValue, convertReportData, convertToExporterParameter, exposeLocalizationContext, fillReport, getConvertedExporterParameters, getExporterParameter, getExporterParameters, getJdbcDataSource, getReport, getReportCompiler, getReportData, getReportDataTypes, initApplicationContext, onInit, postProcessReport, renderMergedOutputModel, setExporterParameters, setHeaders, setJdbcDataSource, setReportCompiler, setReportDataKey, setSubReportDataKeys, setSubReportUrls

Methods inherited from class org.springframework.web.servlet.view.AbstractUrlBasedView
`afterPropertiesSet, getUrl, setUrl, toString`

Methods inherited from class org.springframework.web.servlet.view.AbstractView
`addStaticAttribute, createRequestContext, exposeModelAsRequestAttributes, getAttributesMap, getBeanName, getContentType, getRequestContextAttribute, getStaticAttributes, render, setAttributes, setAttributesCSV, setAttributesMap, setBeanName, setContentType, setRequestContextAttribute`

Methods inherited from class org.springframework.web.context.support.WebApplicationObjectSupport
`getServletContext, getTempDir, getWebApplicationContext, isContextRequired, setServletContext`

Methods inherited from class org.springframework.context.support.ApplicationObjectSupport
`getApplicationContext, getMessageSourceAccessor, requiredContextClass, setApplicationContext`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait`

Field Detail

DEFAULT_FORMAT_KEY

public static final String DEFAULT_FORMAT_KEY

Default value used for format key: "format"

See Also:: Constant Field Values

Constructor Detail

JasperReportsMultiFormatView

public JasperReportsMultiFormatView()

Creates a new JasperReportsMultiFormatView instance with a default set of mappings.

Method Detail

setFormatKey

public void setFormatKey(String formatKey)

Set the key of the model parameter that holds the format discriminator. Default is "format".

setFormatMappings

public void setFormatMappings(Properties mappingsWithClassNames)

Set the mappings of format discriminators to view class names. The default mappings are:

csv - JasperReportsCsvView
html - JasperReportsHtmlView
pdf - JasperReportsPdfView
xls - JasperReportsXlsView

setContentDispositionMappings

public void setContentDispositionMappings(Properties mappings)

Set the mappings of Content-Disposition header values to mapping keys. If specified, Spring will look at these mappings to determine the value of the Content-Disposition header for a given format mapping.

getContentDispositionMappings

public Properties getContentDispositionMappings()

Return the mappings of Content-Disposition header values to mapping keys. Mainly available for configuration through property paths that specify individual keys.

renderReport

protected void renderReport(net.sf.jasperreports.engine.JasperPrint populatedReport,
                            Map model,
                            HttpServletResponse response)
                     throws Exception

Locates the format key in the model using the configured discriminator key and uses this key to lookup the appropriate view class from the mappings. The rendering of the report is then delegated to an instance of that view class.

Specified by:: renderReport in class AbstractJasperReportsView

Parameters:: populatedReport - the populated JasperPrint to render; model - the map containing report parameters; response - the HTTP response the report should be rendered to
Throws:: Exception - if rendering failed
See Also:: AbstractView.getContentType(), ServletResponse.setContentType(java.lang.String), ServletResponse.setCharacterEncoding(java.lang.String)