ContentNegotiatingViewResolver多种输出格式实例: json/jsp/xml/xls/pdf

本例用的是javaConfig配置

以pizza为例。

json输出需要用到的包：

  1. jackson-databind 2.4.1.3
  2. jackson-annotations 2.4.1

　　

pdf需要用到的包：

  1. lowagie itext 4.2.1

　　

xls需要用到的包：

  1. Apache POI 3.10-beta2

　　

xml包

  1. spring-oxm

　　

访问地址：

http://localhost:8080/gugua9/hello/aaa.xml

http://localhost:8080/gugua9/hello/aaa.json

http://localhost:8080/gugua9/hello/aaa

http://localhost:8080/gugua9/hello/aaa.xls

http://localhost:8080/gugua9/hello/aaa.pdf

pom.xml配置：

  1. <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  2.   xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
  3.   <modelVersion>4.0.0</modelVersion>
  4.   <groupId>gugua4</groupId>
  5.   <artifactId>gugua8</artifactId>
  6.   <packaging>war</packaging>
  7.   <version>0.0.1-SNAPSHOT</version>
  8.   <name>gugua8 Maven Webapp</name>
  9.   <url>http://maven.apache.org</url>
  10.  
  11.   <properties>
  12.   	<springVersion>4.3.5.RELEASE</springVersion>
  13.   </properties>
  14.  
  15.   <dependencies>
  16.  
  17.      <!-- spring-test支持 -->
  18.     <dependency>
  19.     	<groupId>org.springframework</groupId>
  20.     	<artifactId>spring-test</artifactId>
  21.     	<version>${springVersion}</version>
  22.     </dependency>
  23.     <dependency>
  24.       <groupId>junit</groupId>
  25.       <artifactId>junit</artifactId>
  26.       <version>4.11</version>
  27.       <scope>test</scope>
  28.     </dependency>
  29.  
  30.       <!-- spring模块库 -->
  31.     <dependency>
  32.     	<groupId>org.springframework</groupId>
  33.     	<artifactId>spring-beans</artifactId>
  34.     	<version>${springVersion}</version>
  35.     </dependency>
  36.     <dependency>
  37.     	<groupId>org.springframework</groupId>
  38.     	<artifactId>spring-web</artifactId>
  39.     	<version>${springVersion}</version>
  40.     </dependency>
  41.     <dependency>
  42.     	<groupId>org.springframework</groupId>
  43.     	<artifactId>spring-webmvc</artifactId>
  44.     	<version>${springVersion}</version>
  45.     </dependency> 
  46.  
  47.     <!-- Needed for XML View (with JAXB2) -->
  48. 	<dependency>
  49. 		<groupId>org.springframework</groupId>
  50. 		<artifactId>spring-oxm</artifactId>
  51. 		<version>${springVersion}</version>
  52. 	</dependency>
  53.  
  54. 	<!-- Needed for JSON View -->
  55. 	<dependency>
  56. 		<groupId>com.fasterxml.jackson.core</groupId>
  57. 		<artifactId>jackson-databind</artifactId>
  58. 		<version>2.7.4</version>
  59. 	</dependency>
  60. 	<dependency>
  61. 		<groupId>com.fasterxml.jackson.core</groupId>
  62. 		<artifactId>jackson-annotations</artifactId>
  63. 		<version>2.7.4</version>
  64. 	</dependency>
  65.  
  66. 	<!-- Needed for PDF View -->
  67. 	<dependency>
  68. 		<groupId>com.lowagie</groupId>
  69. 		<artifactId>itext</artifactId>
  70. 		<version>2.1.7</version>
  71. 	</dependency>
  72.  
  73.     <!-- Needed for XLS View -->
  74. 	<dependency>
  75. 		<groupId>org.apache.poi</groupId>
  76. 		<artifactId>poi</artifactId>
  77. 		<version>3.10-beta2</version>
  78. 	</dependency>
  79.  
  80. 	<!-- Servlet dependencies -->
  81. 		<dependency>
  82. 			<groupId>javax.servlet</groupId>
  83. 			<artifactId>javax.servlet-api</artifactId>
  84. 			<version>3.1.0</version>
  85. 		</dependency>
  86. 		 <!-- servlet(HttpServletRequest,HttpServletResponse) -->
  87. 		<dependency>
  88. 		    <groupId>javax.servlet</groupId>
  89. 		    <artifactId>jstl</artifactId>
  90. 		    <version>1.2</version>
  91. 		</dependency>
  92. 		<dependency>
  93. 			<groupId>javax.servlet.jsp</groupId>
  94. 			<artifactId>javax.servlet.jsp-api</artifactId>
  95. 			<version>2.3.1</version>
  96. 		</dependency>
  97. 	<dependency>
  98.          <groupId>taglibs</groupId>
  99.          <artifactId>standard</artifactId>
  100.          <version>1.1.2</version>
  101.      </dependency>
  102.  
  103.   </dependencies>
  104.  
  105.   <build>
  106.   	<pluginManagement>
  107.   		<plugins>
  108.   			<plugin>
  109.   				<groupId>org.apache.maven.plugins</groupId>
  110.   				<artifactId>maven-war-plugin</artifactId>
  111.   				<version>2.6</version>
  112.   				<configuration>
  113.   					<warSourceDirectory>src/main/webapp</warSourceDirectory>
  114.   					<warName>gugua8</warName>
  115.   					<failOnMissingWebXml>false</failOnMissingWebXml>
  116.   				</configuration>
  117.   			</plugin>
  118.  
  119.   		<!-- define the project compile level -->
  120.          <plugin>
  121.             <groupId>org.apache.maven.plugins</groupId>
  122.             <artifactId>maven-compiler-plugin</artifactId>
  123.             <configuration>
  124.                 <source>1.8</source>
  125.                 <target>1.8</target>
  126.             </configuration>
  127.         </plugin> 
  128.  
  129.   		</plugins>
  130.   	</pluginManagement>
  131.     <finalName>gugua8</finalName>
  132.   </build>
  133. </project>

　　

注意可能会发生的几个错误：

解决maven项目Cannot change version of project facet Dynamic web module to 3.0/3.1

https://www.cnblogs.com/achengmu/p/9101669.html

maven项目Java resources 上面有个红叉但是代码里面并没有什么报错

https://www.cnblogs.com/achengmu/p/9106953.html

pizza.java

  1. package springmvc.model;
  2.  
  3. import java.util.ArrayList;
  4. import java.util.List;
  5.  
  6. import javax.xml.bind.annotation.XmlElement;
  7. import javax.xml.bind.annotation.XmlRootElement;
  8.  
  9. @XmlRootElement(name = "pizza")
  10. public class Pizza {
  11.  
  12. 	private String name;
  13. 	private String flavor;
  14. 	private List<String> toppings = new ArrayList<String>();
  15.  
  16. 	public Pizza()
  17. 	{
  18.  
  19. 	}
  20.  
  21. 	public Pizza(String name){
  22. 		this.name = name;
  23. 		this.flavor = "spicy";
  24. 		this.toppings.add("Cheese");
  25. 		this.toppings.add("bakon");
  26. 	}
  27.  
  28. 	public String getName() {
  29. 		return name;
  30. 	}
  31.  
  32. 	@XmlElement
  33. 	public void setName(String name) {
  34. 		this.name = name;
  35. 	}
  36.  
  37. 	public String getFlavor() {
  38. 		return flavor;
  39. 	}
  40.  
  41. 	@XmlElement
  42. 	public void setFlavor(String flavor) {
  43. 		this.flavor = flavor;
  44. 	}
  45.  
  46. 	public List<String> getToppings() {
  47. 		return toppings;
  48. 	}
  49.  
  50. 	public void setToppings(List<String> toppings) {
  51. 		this.toppings = toppings;
  52. 	}
  53.  
  54. }

　　

AppController.java

  1. package springmvc.controller;
  2.  
  3. import org.springframework.stereotype.Controller;
  4. import org.springframework.ui.ModelMap;
  5. import org.springframework.web.bind.annotation.PathVariable;
  6. import org.springframework.web.bind.annotation.RequestMapping;
  7. import org.springframework.web.bind.annotation.RequestMethod;
  8.  
  9. import springmvc.model.Pizza;
  10.  
  11. @Controller
  12. public class AppController {
  13.  
  14. 	@RequestMapping(value="/pizza/{name}", method=RequestMethod.GET)
  15. 	public String getPizza( ModelMap model,  @PathVariable(value="name") String name)
  16. 	{
  17. 		model.addAttribute("message", name);
  18.  
  19. 		Pizza pizza = new Pizza(name);
  20. 		model.addAttribute("pizza", pizza);
  21.  
  22. 		return "test";
  23.  
  24. 	}
  25.  
  26. }

　　

初始化

AppInitializer.java

  1. package springmvc.configuration;
  2.  
  3. import org.springframework.web.servlet.support.AbstractAnnotationConfigDispatcherServletInitializer;
  4.  
  5. public class AppInitializer extends AbstractAnnotationConfigDispatcherServletInitializer {
  6.  
  7. 	@Override
  8. 	protected Class<?>[] getRootConfigClasses() {
  9. 		// TODO Auto-generated method stub
  10. 		return new Class[] { AppConfig.class };
  11. 	}
  12.  
  13. 	@Override
  14. 	protected Class<?>[] getServletConfigClasses() {
  15. 		// TODO Auto-generated method stub
  16. 		return null;
  17. 	}
  18.  
  19. 	@Override
  20. 	protected String[] getServletMappings() {
  21. 		// TODO Auto-generated method stub
  22. 		return new String [] { "/" };
  23. 	}
  24.  
  25. }

　　

配置
AppConfig.java

  1. package springmvc.configuration;
  2.  
  3. import java.util.ArrayList;
  4. import java.util.List;
  5.  
  6. import org.springframework.context.annotation.Bean;
  7. import org.springframework.context.annotation.ComponentScan;
  8. import org.springframework.context.annotation.Configuration;
  9. import org.springframework.http.MediaType;
  10. import org.springframework.oxm.jaxb.Jaxb2Marshaller;
  11. import org.springframework.web.servlet.ViewResolver;
  12. import org.springframework.web.servlet.view.ContentNegotiatingViewResolver;
  13. import org.springframework.web.servlet.view.InternalResourceViewResolver;
  14. import org.springframework.web.servlet.view.JstlView;
  15.  
  16. import springmvc.model.Pizza;
  17. import springmve.viewresolver.ExcelViewResolver;
  18. import springmve.viewresolver.Jaxb2MarshallingXmlVierResolver;
  19. import springmve.viewresolver.JsonViewResolver;
  20. import springmve.viewresolver.PdfViewResolver;
  21.  
  22. import org.springframework.web.accept.ContentNegotiationManager;
  23. import org.springframework.web.servlet.config.annotation.ContentNegotiationConfigurer;
  24. import org.springframework.web.servlet.config.annotation.EnableWebMvc;
  25. import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
  26.  
  27. @Configuration
  28. @EnableWebMvc
  29. @ComponentScan(basePackages="springmvc")
  30. public class AppConfig  extends WebMvcConfigurerAdapter{
  31.  
  32. 	@Override
  33. 	public void configureContentNegotiation(ContentNegotiationConfigurer configurer) {
  34. 		// TODO Auto-generated method stub
  35. 		//super.configureContentNegotiation(configurer);
  36. 		configurer.ignoreAcceptHeader(true).defaultContentType(MediaType.TEXT_HTML);
  37. 	}
  38.  
  39. 	@Bean
  40. 	public ViewResolver contentNegotiatingViewResolver(ContentNegotiationManager manager)
  41. 	{
  42. 		ContentNegotiatingViewResolver resolver = new ContentNegotiatingViewResolver();
  43. 		resolver.setContentNegotiationManager(manager);
  44.  
  45. 		List<ViewResolver> resolvers = new ArrayList<ViewResolver>();
  46. 		resolvers.add(jspViewResolver());
  47. 		resolvers.add(jaxb2MarshallingViewResolver());
  48. 		resolvers.add(jsonViewResolver());
  49. 		resolvers.add(excelViewResolver());
  50. 		resolvers.add(pdfVierResolver());
  51.  
  52. 		resolver.setViewResolvers(resolvers);
  53. 		return resolver;
  54.  
  55. 	}
  56.  
  57. 	@Bean
  58. 	public ViewResolver jaxb2MarshallingViewResolver()
  59. 	{
  60. 		Jaxb2Marshaller marshaller = new Jaxb2Marshaller();
  61. 		marshaller.setClassesToBeBound(Pizza.class);
  62. 		return new Jaxb2MarshallingXmlVierResolver(marshaller);
  63.  
  64. 	}
  65. 	@Bean
  66. 	public ViewResolver jsonViewResolver()
  67. 	{
  68. 		return new JsonViewResolver();
  69. 	}
  70.  
  71. 	@Bean
  72. 	public ViewResolver jspViewResolver()
  73. 	{
  74. 		InternalResourceViewResolver viewResolver = new InternalResourceViewResolver();
  75. 		viewResolver.setViewClass(JstlView.class);
  76. 		viewResolver.setPrefix("/WEB-INF/views/");
  77. 		viewResolver.setSuffix(".jsp");
  78. 		return viewResolver;
  79. 	}
  80.  
  81. 	@Bean
  82. 	public ViewResolver excelViewResolver()
  83. 	{
  84. 		return new ExcelViewResolver();
  85. 	}
  86.  
  87. 	@Bean
  88. 	public ViewResolver pdfVierResolver()
  89. 	{
  90. 		return new PdfViewResolver();
  91. 	}
  92. }

　　

相关的插件

json实现

  1. package springmve.viewresolver;
  2.  
  3. import java.util.Locale;
  4.  
  5. import org.springframework.web.servlet.View;
  6. import org.springframework.web.servlet.ViewResolver;
  7. import org.springframework.web.servlet.view.json.MappingJackson2JsonView;
  8.  
  9. public class JsonViewResolver implements ViewResolver {
  10.  
  11. 	public View resolveViewName(String viewName, Locale locale) throws Exception {
  12. 		// TODO Auto-generated method stub
  13. 		MappingJackson2JsonView view  = new MappingJackson2JsonView();
  14. 		view.setPrefixJson(true);
  15. 		return view;
  16. 	}
  17.  
  18. }

　　

spring的xml

  1. package springmve.viewresolver;
  2.  
  3. import java.util.Locale;
  4.  
  5. import org.springframework.web.servlet.View;
  6. import org.springframework.web.servlet.ViewResolver;
  7.  
  8. import org.springframework.oxm.Marshaller;
  9. import org.springframework.web.servlet.view.xml.MarshallingView;
  10.  
  11. public class Jaxb2MarshallingXmlVierResolver implements ViewResolver {
  12.  
  13. 	private Marshaller marshaller;
  14.  
  15. 	public Jaxb2MarshallingXmlVierResolver(Marshaller marshaller)
  16. 	{
  17. 		this.marshaller = marshaller;
  18. 	}
  19.  
  20. 	public View resolveViewName(String viewName, Locale locale) throws Exception {
  21. 		// TODO Auto-generated method stub
  22. 		MarshallingView view = new MarshallingView();
  23. 		view.setMarshaller(marshaller);
  24. 		return view;
  25. 	}
  26.  
  27. }

　　

excel-xls的实现（spring-AbstractExcelView）

  1. package springmve.viewresolver;
  2.  
  3. import java.util.Map;
  4.  
  5. import javax.servlet.http.HttpServletRequest;
  6. import javax.servlet.http.HttpServletResponse;
  7.  
  8. import org.apache.poi.hssf.usermodel.HSSFWorkbook;
  9. import org.apache.poi.ss.usermodel.Cell;
  10. import org.apache.poi.ss.usermodel.CellStyle;
  11. import org.apache.poi.ss.usermodel.IndexedColors;
  12. import org.apache.poi.ss.usermodel.Row;
  13. import org.apache.poi.ss.usermodel.Sheet;
  14. import org.springframework.web.servlet.view.document.AbstractExcelView;
  15.  
  16. import springmvc.model.Pizza;
  17.  
  18. public class ExcelView extends AbstractExcelView {
  19.  
  20. 	@Override
  21. 	protected void buildExcelDocument(Map<String, Object> model, HSSFWorkbook workbook, HttpServletRequest request,
  22. 			HttpServletResponse response) throws Exception {
  23. 		// TODO Auto-generated method stub
  24.  
  25. 		Pizza pizza = (Pizza) model.get("pizza");
  26.  
  27. 		//创建工作簿
  28. 		Sheet sheet = workbook.createSheet("sheel");
  29. 		//工作簿样式
  30. 		CellStyle style = workbook.createCellStyle();
  31. 		style.setFillBackgroundColor(IndexedColors.GREY_40_PERCENT.index);
  32. 		style.setFillPattern(CellStyle.SOLID_FOREGROUND);
  33. 		style.setAlignment(CellStyle.ALIGN_CENTER);
  34.  
  35. 		Row row = null;
  36. 		Cell cell = null;
  37. 		int rowCount = 0;
  38. 		int colCount = 0;
  39.  
  40. 		//create-table
  41. 		row = sheet.createRow(rowCount++);
  42.  
  43. 		cell = row.createCell(colCount++);
  44. 		cell.setCellStyle(style);
  45. 		cell.setCellValue("name");
  46.  
  47. 		cell = row.createCell(colCount++);
  48. 		cell.setCellStyle(style);
  49. 		cell.setCellValue("flavor");
  50.  
  51. 		cell = row.createCell(colCount++);
  52. 		cell.setCellStyle(style);
  53. 		cell.setCellValue("toppings");
  54.  
  55. 		//set-value
  56. 		row = sheet.createRow(rowCount++);
  57. 		colCount = 0;
  58. 		row.createCell(colCount++).setCellValue(pizza.getName());
  59. 		row.createCell(colCount++).setCellValue(pizza.getFlavor());
  60.  
  61. 		StringBuffer toppings = new StringBuffer();
  62. 		for(String topping: pizza.getToppings())
  63. 		{
  64. 			toppings.append(topping);
  65. 			toppings.append(" ");
  66. 		}
  67. 		row.createCell(colCount++).setCellValue(toppings.toString());
  68.  
  69. 		//for(int i = 0; i<3; i++)
  70. 		//{
  71. 		//	sheet.autoSizeColumn(i);
  72. 		//}
  73.  
  74. 	}
  75.  
  76. }

　　

  1. package springmve.viewresolver;
  2.  
  3. import java.util.Locale;
  4.  
  5. import org.springframework.web.servlet.View;
  6. import org.springframework.web.servlet.ViewResolver;
  7.  
  8. public class ExcelViewResolver implements ViewResolver {
  9.  
  10. 	@Override
  11. 	public View resolveViewName(String viewName, Locale locale) throws Exception {
  12. 		// TODO Auto-generated method stub
  13. 		ExcelView view = new ExcelView();
  14. 		return view;
  15. 	}
  16.  
  17. }

　　

pdf的实现(spring-AbstractPdfView)

  1. package springmve.viewresolver;
  2.  
  3. import java.awt.Color;
  4. import java.util.Map;
  5.  
  6. import javax.servlet.http.HttpServletRequest;
  7. import javax.servlet.http.HttpServletResponse;
  8.  
  9. import org.springframework.web.servlet.view.document.AbstractPdfView;
  10.  
  11. import com.lowagie.text.Document;
  12. import com.lowagie.text.Element;
  13. import com.lowagie.text.pdf.PdfPTable;
  14. import com.lowagie.text.pdf.PdfWriter;
  15.  
  16. import springmvc.model.Pizza;
  17.  
  18. public class PdfView extends AbstractPdfView {
  19.  
  20. 	@Override
  21. 	protected void buildPdfDocument(Map<String, Object> model, Document document, PdfWriter writer,
  22. 			HttpServletRequest request, HttpServletResponse response) throws Exception {
  23. 		// TODO Auto-generated method stub
  24.  
  25. 		Pizza pizza = (Pizza) model.get("pizza");
  26.  
  27. 		PdfPTable table = new PdfPTable(3);
  28. 		//对齐方式
  29. 		table.getDefaultCell().setHorizontalAlignment(Element.ALIGN_CENTER);
  30. 		table.getDefaultCell().setVerticalAlignment(Element.ALIGN_CENTER);
  31. 		table.getDefaultCell().setBackgroundColor(Color.lightGray);
  32.  
  33. 		//表头
  34. 		table.addCell("name");
  35. 		table.addCell("flavor");
  36. 		table.addCell("toppings");
  37.  
  38. 		//内容
  39. 		table.addCell(pizza.getName());
  40. 		table.addCell(pizza.getFlavor());
  41.  
  42. 		StringBuffer toppings = new StringBuffer();
  43. 		for(String topping: pizza.getToppings())
  44. 		{
  45. 			toppings.append(topping);
  46. 			toppings.append(" ");
  47. 		}
  48. 		table.addCell(toppings.toString());
  49. 		document.add(table);
  50.  
  51. 	}
  52.  
  53. }

　　

  1. package springmve.viewresolver;
  2.  
  3. import java.util.Locale;
  4.  
  5. import org.springframework.web.servlet.View;
  6. import org.springframework.web.servlet.ViewResolver;
  7.  
  8. public class PdfViewResolver implements ViewResolver {
  9.  
  10. 	@Override
  11. 	public View resolveViewName(String viewName, Locale locale) throws Exception {
  12. 		// TODO Auto-generated method stub
  13. 		PdfView view = new PdfView();
  14. 		return view;
  15. 	}
  16.  
  17. }

　　

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