认识达内从这里开始

需求：

1、springmvc返回xml；

技术及环境：

Spring 4.3.1.RELEASE

JDK 1.8

IDEA 15.0.6

Maven 3

实现：

spirngxml的配置主要如下：

添加项目依赖：

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<dependency><groupId>org.springframework</groupId><artifactId>spring-core</artifactId><version>4.3.1.RELEASE</version></dependency><!--#/artifact/org.springframework/spring-beans--><dependency><groupId>org.springframework</groupId><artifactId>spring-beans</artifactId><version>4.3.1.RELEASE</version></dependency><!--#/artifact/org.springframework/spring-context--><dependency><groupId>org.springframework</groupId><artifactId>spring-context</artifactId><version>4.3.1.RELEASE</version></dependency><!--#/artifact/org.springframework/spring-web--><dependency><groupId>org.springframework</groupId><artifactId>spring-web</artifactId><version>4.3.1.RELEASE</version></dependency><!--#/artifact/org.springframework/spring-webmvc--><dependency><groupId>org.springframework</groupId><artifactId>spring-webmvc</artifactId><version>4.3.1.RELEASE</version></dependency>

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实体类JavaBean

一个简单的JavaBean，添加了JAXB注解，spring将会根据请求判断转换成xml。JAXB不需要添加额外的依赖库，已经包含在jdk中。

BaseXmlResult的作用是作为返回的标志和附加消息对象（如：操作成功！操作失败等）。抽取出来，不用每个返回对象都写code和message，只需要继承即可。XmlActionResult为具体的要返回的信息的对象。前台页面需要解析的数据。该对象中Data为泛型对象，返回时，可根据实际情况，设置Person.class|Man.class|Woman.class对象，若有其他对象，只需对注解进行调整即可，方便维护。

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publicclassBaseXmlResult {protectedString code;protectedString message;publicString getCode() {returncode; }publicvoidsetCode(String code) {this.code =code; }publicString getMessage() {returnmessage; }publicvoidsetMessage(String message) {this.message =message; } }

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@XmlRootElement(name = "xml") @XmlAccessorType(XmlAccessType.NONE)publicclassXmlActionResult<T>extendsBaseXmlResult{ @XmlElements({ @XmlElement(name="Person",type = Person.class), @XmlElement(name="Man",type = Man.class), @XmlElement(name="Woman",type = Woman.class) })privateT data;publicString getCode() {returncode; }publicvoidsetCode(String code) {this.code =code; }publicString getMessage() {returnmessage; }publicvoidsetMessage(String message) {this.message =message; }publicT getData() {returndata; }publicvoidsetData(T data) {this.data =data; } }

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@XmlRootElement @XmlAccessorType(XmlAccessType.NONE)publicclassPerson { @XmlElementprivateString name; @XmlElementprivateInteger sex; @XmlElementprivateInteger age;privateDate birthday;publicPerson(String name, Integer sex, Integer age) {this.name =name;this.sex =sex;this.age =age; }publicPerson() { }publicString getName() {returnname; }publicvoidsetName(String name) {this.name =name; }publicInteger getSex() {returnsex; }publicvoidsetSex(Integer sex) {this.sex =sex; }publicInteger getAge() {returnage; }publicvoidsetAge(Integer age) {this.age =age; } @JsonFormat(pattern="yyyy-MM-dd HH:mm:ss",timezone = "GMT+8")//json格式返回的日期格式化注解，日期格式json转换默认是long类型的，如：144101141111111，格式化成yyyy-MM-dd HH:mm:ss格式publicDate getBirthday() {returnbirthday; }publicvoidsetBirthday(Date birthday) {this.birthday =birthday; } }

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Controller类

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@Controller @RequestMapping("/mvc")publicclassHelloController { @RequestMapping("/helloXmlPerson/{name}") @ResponseBodypublicXmlActionResult helloXmlPerson(@PathVariable("name") String name){ XmlActionResult<Person> actionResult =newXmlActionResult<Person>(); actionResult.setCode("123"); actionResult.setMessage(name); Person person=newPerson("xxxxx",1,32); actionResult.setData(person);returnactionResult; } }

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spring配置文件中新增

<mvc:annotation-driven/>

用于启用@ResponseBody注解。

访问对应得路径后返回：

<xml>

<code>123</code>

<message>nihao</message>

<Person>

<name>xxxxx</name>

<sex>1</sex>

<age>32</age>

</Person>

</xml>