Thymeleaf MVC与Spring的集成

源码下载链接：

待集成的原项目
样例

**本篇博客主要是在上述两个工程的基础上，仿照stsm工程为gtvg集成spring框架，使其@Controller等元数据，通过对
Thymeleaf +Spring官方文档的解读，参照Spring Expression Language (SpEL)语言规则对gtvg进行适当的修改。**

本次实验主要是在gtvg的基础上进行修改，其项目的基本结构保持不变。
第一步：Maven工程首先应该配置pom.xml，添加需要的依赖
主要的修改为： artifactId 修改为 my_mvn，添加Spring框架版本及相应的Spring依赖。

pom.xml如下：

<?xml version="1.0" encoding="UTF-8"?>
<!-- ========================================================================= -->
<!--                                                                           -->
<!--   Copyright (c) 2011-2016, The THYMELEAF team (http://www.thymeleaf.org)  -->
<!--                                                                           -->
<!--   Licensed under the Apache License, Version 2.0 (the "License");         -->
<!--   you may not use this file except in compliance with the License.        -->
<!--   You may obtain a copy of the License at                                 -->
<!--                                                                           -->
<!--       http://www.apache.org/licenses/LICENSE-2.0                          -->
<!--                                                                           -->
<!--   Unless required by applicable law or agreed to in writing, software     -->
<!--   distributed under the License is distributed on an "AS IS" BASIS,       -->
<!--   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or         -->
<!--   implied. See the License for the specific language governing            -->
<!--   permissions and limitations under the License.                          -->
<!--                                                                           -->
<!-- ========================================================================= -->  <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">  <modelVersion>4.0.0</modelVersion>  <groupId>thymeleafexamples</groupId>  <artifactId>my_mvn</artifactId>  <packaging>war</packaging>  <version>ci</version>  <name>Thymeleaf Examples - My Sring Thymeleaf MVC </name>  <description>XML/XHTML/HTML5 template engine for Java</description>  <licenses>  <license>  <name>The Apache Software License, Version 2.0</name>  <url>http://www.apache.org/licenses/LICENSE-2.0.txt</url>  <distribution>repo</distribution>  </license>  </licenses>  <organization>  <name>The THYMELEAF team</name>  <url>http://www.thymeleaf.org</url>  </organization>  <scm>  <url>scm:git:git@github.com:thymeleaf/thymeleafexamples-stsm.git</url>  <connection>scm:git:git@github.com:thymeleaf/thymeleafexamples-stsm.git</connection>  <developerConnection>scm:git:git@github.com:thymeleaf/thymeleafexamples-stsmgit</developerConnection>  </scm>  <developers>  <developer>  <id>dfernandez</id>  <name>Daniel Fernandez</name>  <email>daniel.fernandez AT 11thlabs DOT org</email>  <roles>  <role>Project admin</role>  </roles>  </developer>  </developers>  <repositories>  <repository>  <id>sonatype-nexus-snapshots</id>  <name>Sonatype Nexus Snapshots</name>  <url>https://oss.sonatype.org/content/repositories/snapshots</url>  <snapshots>  <enabled>true</enabled>  </snapshots>  </repository>  <repository>  <id>jboss</id>  <url>http://repository.jboss.org/nexus/content/groups/public-jboss/</url>  <releases>  <enabled>true</enabled>  </releases>  </repository>  </repositories>  <properties>  <project.build.sourceEncoding>ISO-8859-1</project.build.sourceEncoding>  <thymeleaf.version>3.0.2.RELEASE</thymeleaf.version>  <springframework.version>4.3.3.RELEASE</springframework.version>  </properties>  <build>  <resources>  <resource>  <directory>src/main/resources</directory>  </resource>  <resource>  <directory>src/main/java</directory>  <includes>  <include>**/*.properties</include>  <include>**/*.xml</include>  <include>**/*.html</include>  </includes>  </resource>  </resources>  <plugins>  <plugin>  <groupId>org.apache.maven.plugins</groupId>  <artifactId>maven-compiler-plugin</artifactId>  <version>3.5.1</version>  <configuration>  <source>1.6</source>  <target>1.6</target>  </configuration>  </plugin>  <plugin>  <groupId>org.apache.maven.plugins</groupId>  <artifactId>maven-resources-plugin</artifactId>  <version>2.7</version>  <configuration>  <encoding>ISO-8859-1</encoding>  </configuration>  </plugin>  <plugin>  <groupId>org.apache.maven.plugins</groupId>  <artifactId>maven-war-plugin</artifactId>  <version>2.6</version>  <configuration>  <failOnMissingWebXml>false</failOnMissingWebXml>  </configuration>  </plugin>  <plugin>  <groupId>org.apache.tomcat.maven</groupId>  <artifactId>tomcat7-maven-plugin</artifactId>  <version>2.2</version>  </plugin>  </plugins>  </build>  <profiles>  <profile>  <id>build-dist</id>  <build>  <plugins>  <plugin>  <groupId>org.apache.maven.plugins</groupId>  <artifactId>maven-assembly-plugin</artifactId>  <executions>  <execution>  <id>make-assembly-dist</id>  <phase>package</phase>  <goals>  <goal>attached</goal>  </goals>  <configuration>  <descriptors>  <descriptor>${basedir}/src/assembly/sources.xml</descriptor>  </descriptors>  <appendAssemblyId>true</appendAssemblyId>  <finalName>${project.groupId}-${project.artifactId}-${project.version}</finalName>  </configuration>  </execution>  </executions>  </plugin>  </plugins>  </build>  </profile>  </profiles>  <dependencies>  <dependency>  <groupId>org.thymeleaf</groupId>  <artifactId>thymeleaf-spring4</artifactId>  <version>${thymeleaf.version}</version>  <scope>compile</scope>  </dependency>  <dependency>  <groupId>javax.servlet</groupId>  <artifactId>javax.servlet-api</artifactId>  <version>3.1.0</version>  <scope>provided</scope>  </dependency>  <dependency>  <groupId>org.springframework</groupId>  <artifactId>spring-core</artifactId>  <version>${springframework.version}</version>  <scope>compile</scope>  </dependency>  <dependency>  <groupId>org.springframework</groupId>  <artifactId>spring-context</artifactId>  <version>${springframework.version}</version>  <scope>compile</scope>  </dependency>  <dependency>  <groupId>org.springframework</groupId>  <artifactId>spring-beans</artifactId>  <version>${springframework.version}</version>  <scope>compile</scope>  </dependency>  <dependency>  <groupId>org.springframework</groupId>  <artifactId>spring-aop</artifactId>  <version>${springframework.version}</version>  <scope>compile</scope>  </dependency>  <dependency>  <groupId>org.springframework</groupId>  <artifactId>spring-aspects</artifactId>  <version>${springframework.version}</version>  <scope>compile</scope>  </dependency>  <dependency>  <groupId>org.springframework</groupId>  <artifactId>spring-expression</artifactId>  <version>${springframework.version}</version>  <scope>compile</scope>  </dependency>  <dependency>  <groupId>org.springframework</groupId>  <artifactId>spring-web</artifactId>  <version>${springframework.version}</version>  <scope>compile</scope>  </dependency>  <dependency>  <groupId>org.springframework</groupId>  <artifactId>spring-webmvc</artifactId>  <version>${springframework.version}</version>  <scope>compile</scope>  </dependency>  <dependency>  <groupId>javax.validation</groupId>  <artifactId>validation-api</artifactId>  <version>1.0.0.GA</version>  <scope>compile</scope>  </dependency>  <dependency>  <groupId>org.hibernate</groupId>  <artifactId>hibernate-validator-annotation-processor</artifactId>  <version>4.1.0.Final</version>  </dependency>          <dependency>  <groupId>org.slf4j</groupId>  <artifactId>slf4j-api</artifactId>  <version>1.6.1</version>  <scope>compile</scope>  </dependency>  <dependency>  <groupId>org.slf4j</groupId>  <artifactId>slf4j-log4j12</artifactId>  <version>1.6.1</version>  <scope>compile</scope>  </dependency>  <dependency>  <groupId>log4j</groupId>  <artifactId>log4j</artifactId>  <version>1.2.15</version>  <scope>compile</scope>  <exclusions>  <exclusion>  <groupId>com.sun.jdmk</groupId>  <artifactId>jmxtools</artifactId>  </exclusion>  <exclusion>  <groupId>com.sun.jmx</groupId>  <artifactId>jmxri</artifactId>  </exclusion>  <exclusion>  <groupId>javax.jms</groupId>  <artifactId>jms</artifactId>  </exclusion>  </exclusions>  </dependency>  </dependencies>  </project>

SpringServletInitializer.Java不必修改，只需修改SpringWebConfig.java（对于该文件，我们也可以以beans.xml的形式实现），删除原有的addFormatters、varietyFormatter、dateFormatter等方法，因为我们在gtvg中并不需要stsm的VarietyFormatter等类，同时修改viewResolver方法，添加 viewResolver.setCharacterEncoding(“UTF-8”)，使其编码方式为 “UTF-8”，否则中文会乱码。由于我们已经有了SpringWebConfig.java 来实现配置，那么就可以删掉web.xml文件，filter包也用不到，删掉。

package thymeleafexamples.gtvg.application;  import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.support.ResourceBundleMessageSource;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
import org.thymeleaf.spring4.SpringTemplateEngine;
import org.thymeleaf.spring4.templateresolver.SpringResourceTemplateResolver;
import org.thymeleaf.spring4.view.ThymeleafViewResolver;
import org.thymeleaf.templatemode.TemplateMode;
/*import thymeleafexamples.stsm.web.conversion.DateFormatter;
import thymeleafexamples.stsm.web.conversion.VarietyFormatter;*/  @Configuration
@EnableWebMvc
@ComponentScan("thymeleafexamples.gtvg")
public class SpringWebConfig  extends WebMvcConfigurerAdapter implements ApplicationContextAware {  private ApplicationContext applicationContext;  public SpringWebConfig() {  super();  }  public void setApplicationContext(final ApplicationContext applicationContext)  throws BeansException {  this.applicationContext = applicationContext;  }  /* ******************************************************************* */  /*  GENERAL CONFIGURATION ARTIFACTS                                    */  /*  Static Resources, i18n Messages, Formatters (Conversion Service)   */  /* ******************************************************************* */  /** *  Dispatcher configuration for serving static resources */  @Override  public void addResourceHandlers(final ResourceHandlerRegistry registry) {  super.addResourceHandlers(registry);  registry.addResourceHandler("/images/**").addResourceLocations("/images/");  registry.addResourceHandler("/css/**").addResourceLocations("/css/");  registry.addResourceHandler("/js/**").addResourceLocations("/js/");  }  /**  *  Message externalization/internationalization  */  @Bean  public ResourceBundleMessageSource messageSource() {  ResourceBundleMessageSource messageSource = new ResourceBundleMessageSource();  messageSource.setBasename("Messages");  return messageSource;  }  /* **************************************************************** */  /*  THYMELEAF-SPECIFIC ARTIFACTS                                    */  /*  TemplateResolver <- TemplateEngine <- ViewResolver              */  /* **************************************************************** */  @Bean  public SpringResourceTemplateResolver templateResolver(){  // SpringResourceTemplateResolver automatically integrates with Spring's own  // resource resolution infrastructure, which is highly recommended.  SpringResourceTemplateResolver templateResolver = new SpringResourceTemplateResolver();  templateResolver.setApplicationContext(this.applicationContext);  templateResolver.setPrefix("/WEB-INF/templates/");  templateResolver.setSuffix(".html");  // HTML is the default value, added here for the sake of clarity.  templateResolver.setTemplateMode(TemplateMode.HTML);  // Template cache is true by default. Set to false if you want  // templates to be automatically updated when modified.  templateResolver.setCacheable(true);  return templateResolver;  }  @Bean  public SpringTemplateEngine templateEngine(){  // SpringTemplateEngine automatically applies SpringStandardDialect and  // enables Spring's own MessageSource message resolution mechanisms.  SpringTemplateEngine templateEngine = new SpringTemplateEngine();  templateEngine.setTemplateResolver(templateResolver());  // Enabling the SpringEL compiler with Spring 4.2.4 or newer can  // speed up execution in most scenarios, but might be incompatible  // with specific cases when expressions in one template are reused  // across different data types, so this flag is "false" by default  // for safer backwards compatibility.  templateEngine.setEnableSpringELCompiler(true);  return templateEngine;  }  @Bean  public ThymeleafViewResolver viewResolver(){  ThymeleafViewResolver viewResolver = new ThymeleafViewResolver();  viewResolver.setTemplateEngine(templateEngine());  //  viewResolver.setCharacterEncoding("UTF-8");  return viewResolver;  }  }

第三步：修改控制器
因为我们使用@Controller、@RequestMapping等元数据，可以删除gtvg原有controller包下的所有控制器，进行重写，我下面实现了3个控制器，如图所示：

对于GTVGController.java，主要实现基本的地址请求，实现如下：

package thymeleafexamples.gtvg.web.controller;  import java.util.Calendar;
import java.util.Date;
import java.util.List;  import javax.servlet.http.HttpSession;  import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;  import thymeleafexamples.gtvg.business.entities.User;
import thymeleafexamples.gtvg.business.entities.Order;
import thymeleafexamples.gtvg.business.entities.Product;
import thymeleafexamples.gtvg.business.services.OrderService;
import thymeleafexamples.gtvg.business.services.ProductService;  @Controller
public class GTVGController {  @Autowired  private ProductService productService;  @Autowired  private OrderService orderService;  public GTVGController() {  // TODO Auto-generated constructor stub  super();  }  @ModelAttribute("today")  public Date getToday() {  return Calendar.getInstance().getTime();  }  @ModelAttribute("prods")   public List<Product> showALlProducts() {  return this.productService.findAll();  }  @ModelAttribute("orders")  public List<Order> showAllOrders() {  return this.orderService.findAll();  }  @RequestMapping({"/", "/gtvg"})  public String showHome(HttpSession session) {  session.setAttribute("user", new User("John", "Apricot", "Antarctica", null));  return "home";  }  @RequestMapping("/userprofile")  public String showUserProfile() {  return "userprofile";  }  @RequestMapping("/subscribe")  public String showSubscribe() {  return "subscribe";  }  @RequestMapping("/product/list")   public String showProductList() {  return "/product/list";  }  @RequestMapping("/order/list")   public String showOrderList() {  return "/order/list";  }  }

大部分工作已经完成，最后就需要修改资源文件(.properties，.html)

properties 文件
在SpringWebConfig.java 有一个messageSource方法，就是用于管理资源文件的（含有@Bean注解的类，均可以在beans.xml文件中配置）。

.properties文件是用于实现文字国际化表达的：
参考stms的目录，可以发现，它的_.properties文件都是集中在Messages.properties中messageSource.setBasename(“Messages”);
因此，在src/main/resources 下新建Messages.properties 文件，将gtvg原有templates文件夹下的properties文件复制到对应版本的。
.html 文件
由于使用Spring集成，在Thymeleaf 中使用的方言有些符合OGNL，但是却不符合SpEL(Spring Expression Language)，因此我们应作出相应的修改。
比如:
对于order/list.html, 应该将{#aggregates.sum(o.orderLines.{purchasePrice * amount})}修改为{#aggregates.sum(o.orderLines.{purchasePrice * amount})}修改为 {#aggregates.sum(o.orderLines.![purchasePrice * amount])}
对于order/details.html 也要作上述修改，还有 SpEL 在 ‘{th:object,data-th-object}’ 只支持(${…})，
因此需要将

修改为

第五步：到此为止，我们完成了Spring的集成工作，可以检验一下我们的结果，clean compile tomcat7:run 运行程序，与原有gtvg的项目结果进行比对，如果完全一样，则我们正确集成了Spring。
注意：测试时根URI为localhost:8080/my_mvn/， my_mvn是我们的工程名

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Thymeleaf MVC与Spring的集成

源码下载链接：

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