jQuery，Spring MVC @RequestBody和JSON-协同工作
我想要双向JSON到Java的序列化
我正在成功使用Java到JSON到jQuery的路径…（@ResponseBody）例如
@RequestMapping(value={"/fooBar/{id}"}, method=RequestMethod.GET) public @ResponseBody FooBar getFooBar(
@PathVariable String id,
HttpServletResponse response , ModelMap model) {
response.setContentType("application/json");
...
}
在JQuery中，我使用
$.getJSON('fooBar/1', function(data) { //do something
});
这很好用（例如，感谢所有回答者，注释已经可以使用了）
但是，我该如何做反向路径：是否已使用RequestBody将JSON序列化回Java对象？
无论我尝试什么，我都无法像这样工作：
@RequestMapping(value={"/fooBar/save"}, method=RequestMethod.POST)public String saveFooBar(@RequestBody FooBar fooBar,
HttpServletResponse response , ModelMap model) {
//This method is never called. (it does when I remove the RequestBody...)
}
我已经正确配置了Jackson（它会在出局时序列化），并且我将MVC设置为驱动的注释
我该如何运作？有可能吗？还是Spring / JSON / JQuery是单向（out）？
更新：
我改变了杰克逊的设置
<bean id="jsonHttpMessageConverter" class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter" />
<!-- Bind the return value of the Rest service to the ResponseBody. -->
<bean
class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
<property name="messageConverters">
<util:list id="beanList">
<ref bean="jsonHttpMessageConverter" />
<!-- <ref bean="xmlMessageConverter" /> -->
</util:list>
</property>
</bean>
给（几乎类似的）建议
<bean id="jacksonMessageConverter" class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter"></bean>
<bean
class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
<property name="messageConverters">
<list>
<ref bean="jacksonMessageConverter" />
</list>
</property>
</bean>
它似乎有效！我不知道该技巧到底是什么，但它可以起作用…
回答：
这是一个工作示例：
Maven POM
<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>test</groupId><artifactId>json</artifactId><packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version><name>json test</name>
<dependencies>
<dependency><!-- spring mvc -->
<groupId>org.springframework</groupId><artifactId>spring-webmvc</artifactId><version>3.0.5.RELEASE</version>
</dependency>
<dependency><!-- jackson -->
<groupId>org.codehaus.jackson</groupId><artifactId>jackson-mapper-asl</artifactId><version>1.4.2</version>
</dependency>
</dependencies>
<build><plugins>
<!-- javac --><plugin><groupId>org.apache.maven.plugins</groupId><artifactId>maven-compiler-plugin</artifactId>
<version>2.3.2</version><configuration><source>1.6</source><target>1.6</target></configuration></plugin>
<!-- jetty --><plugin><groupId>org.mortbay.jetty</groupId><artifactId>jetty-maven-plugin</artifactId>
<version>7.4.0.v20110414</version></plugin>
</plugins></build>
</project>
在文件夹src / main / webapp / WEB-INF中
web.xml
<web-app xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"
version="2.4">
<servlet><servlet-name>json</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>json</servlet-name>
<url-pattern>/*</url-pattern>
</servlet-mapping>
</web-app>
json-servlet.xml
<beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd">
<import resource="classpath:mvc-context.xml" />
</beans>
在文件夹src / main / resources中：
mvc-context.xml
<beans xmlns="http://www.springframework.org/schema/beans" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd">
<mvc:annotation-driven />
<conte
```xt:component-scan base-package="test.json" />
</beans>
在文件夹src / main / java / test / json中
TestController.java
@Controller
@RequestMapping(“/test”)
public class TestController {
@RequestMapping(method = RequestMethod.POST, value = "math")@ResponseBody
public Result math(@RequestBody final Request request) {
final Result result = new Result();
result.setAddition(request.getLeft() + request.getRight());
result.setSubtraction(request.getLeft() - request.getRight());
result.setMultiplication(request.getLeft() * request.getRight());
return result;
}
}
Request.java
public class Request implements Serializable {
private static final long serialVersionUID = 1513207428686438208L;
private int left;
private int right;
public int getLeft() {return left;}
public void setLeft(int left) {this.left = left;}
public int getRight() {return right;}
public void setRight(int right) {this.right = right;}
}
Result.java
public class Result implements Serializable {
private static final long serialVersionUID = -5054749880960511861L;
private int addition;
private int subtraction;
private int multiplication;
public int getAddition() { return addition; }public void setAddition(int addition) { this.addition = addition; }
public int getSubtraction() { return subtraction; }
public void setSubtraction(int subtraction) { this.subtraction = subtraction; }
public int getMultiplication() { return multiplication; }
public void setMultiplication(int multiplication) { this.multiplication = multiplication; }
}
你可以通过`mvn jetty:run`在命令行上执行，然后发送POST请求来测试此设置：
URL: http://localhost:8080/test/math
mime type: application/json
post body: { “left”: 13 , “right” : 7 }
我使用了海报Firefox插件来执行此操作。
响应如下所示：
{“addition”:20,”subtraction”:6,”multiplication”:91}
```
以上是 jQuery，Spring MVC @RequestBody和JSON-协同工作 的全部内容， 来源链接： utcz.com/qa/420326.html
