Spring MVC @RequestBody
来源：原创 发布时间：2015-03-24 归档：springmvc
开发环境 ：
JDK 7
Maven 3
Tomcat 7
Spring 4.1.5
Eclipse Luna
@RequestBody 注解表明处理方法的参数的值是绑定到 Http Request Body, 处理方法执行时从 Http Request Body 中读取绑定的数据到参数。
示例代码片段 1 ( pojo )
@Controller
@RequestMapping("/product")
public class ProductController {
@RequestMapping(value = "/add", method = POST)
public String addProduct(@RequestBody Product product) {
System.out.println(product);
return LIST_PAGE;
}
public static class Product {
private int id;
private String name;
private double price;
public Product() {
}
public Product(int id, String name, double price) {
this.id = id;
this.name = name;
this.price = price;
}
// ignore getters and setters
@Override
public String toString() {
return id + " " + name + " " + price;
}
}
}
<p>
<textarea disabled="disabled">
{"id":1001,"name":"戴尔-XPS-13(XPS13D-9343-1508)笔记本","price":6999.0}
</textarea>
<button>add</button>
</p>
<script type="text/javascript">
$(function(){
$("button").click(function(){
var button = $(this);
$.ajax({
type : "post",
url : "product/" + button.text(),
data : button.parent().find("textarea").val(),
contentType : "application/json",
success : function() {
alert("well, now you can see the execution result on the console");
}
});
});
});
</script>
示例代码片段 2 ( list )
@Controller
@RequestMapping("/product")
public class ProductController {
@RequestMapping(value = "/addSerial", method = POST)
public String addSerialProduct(@RequestBody List<Product> list) {
for(Product product : list) {
System.out.println(product);
}
return LIST_PAGE;
}
}
<p>
<textarea disabled="disabled">
[{"id":1001,"name":"戴尔-XPS-13(XPS13D-9343-1508)笔记本","price":6999.0},
{"id":1002,"name":"戴尔-XPS-13(XPS13D-9343-1708)笔记本","price":8999.0}]
</textarea>
<button>addSerial</button>
</p>
示例代码片段 3 ( map )
@Controller
@RequestMapping("/product")
public class ProductController {
@RequestMapping(value = "/addBrand", method = POST)
public String addBrandProduct(@RequestBody Map<String, Product> map) {
System.out.println(map.get("dell"));
return LIST_PAGE;
}
}
<p>
<textarea disabled="disabled">
{"dell":{"id":1003,"name":"戴尔-XPS-13(XPS13D-9343-1808T)笔记本","price":13000.0}}
</textarea>
<button>addBrand</button>
</p>
不要忘记引入依赖
<dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-databind</artifactId> <version>2.4.1</version> </dependency>
示例代码下载