接收bean
@RequestMapping(value = "/test/query",method = RequestMethod.GET)
@ResponseBody
public QueryParam getQueryByBean(QueryParam param, Order order) throws JsonProcessingException {
System.out.println(objectMapper.writeValueAsString(order));
return param;
}
无需额外注解，可以自动填充bean属性，其中bean支持嵌套对象，嵌套list对象，嵌套list简单类型，嵌套array简单类型
自动填充简单属性
http://localhost:8080/test/query?id=1&count=3&name=111
自动填充多个bean
代码
@RequestMapping(value = "/test/query",method = RequestMethod.GET)
@ResponseBody
public QueryParam getQueryByBean(QueryParam param, Order order) throws JsonProcessingException {
System.out.println(objectMapper.writeValueAsString(order));
return param;
}
请求
http://localhost:8080/test/query?id=1&count=3&name=111&cost=99
输出
{
"id": "1",
"name": "111",
"desc": null,
"finished": null,
"count": 3,
"stringList": null,
"arrs": null,
"address": null,
"orders": null,
"orderArrs": null
}
另外一个bean的值
{
"name": "111",
"cost": 99
}
同名的属性，多个bean会被填充为同一个值，不同名的会自动去其他bean里头寻找
自动填充嵌套对象属性
http://localhost:8080/test/query?id=1&address.name=xxx&address.district=111
输出
{
"id": "1",
"name": null,
"desc": null,
"finished": null,
"count": null,
"stringList": null,
"arrs": null,
"address": {
"name": "xxx",
"district": "111"
},
"orders": null,
"orderArrs": null
}
自动填充简单类型array
http://localhost:8080/test/query?arrs[0]=1&arrs[1]=2
输出
{
"id": null,
"name": null,
"desc": null,
"finished": null,
"count": null,
"stringList": null,
"arrs": [
"1",
"2"
],
"address": null,
"orders": null,
"orderArrs": null
}
自动填充简单类型list
http://localhost:8080/test/query?stringList[0]=1&stringList[1]=2
输出
{
"id": null,
"name": null,
"desc": null,
"finished": null,
"count": null,
"stringList": [
"1",
"2"
],
"arrs": null,
"address": null,
"orders": null,
"orderArrs": null
}
自动填充array对象
http://localhost:8080/test/query?id=1&orderArrs[0].name=xxx&orderArrs[0].cost=100&orderArrs[1].name=yyy&orderArrs[1].cost=99.9
输出
{
"id": "1",
"name": null,
"desc": null,
"finished": null,
"count": null,
"stringList": null,
"arrs": null,
"address": null,
"orders": null,
"orderArrs": [
{
"name": "xxx",
"cost": 100
},
{
"name": "yyy",
"cost": 99.9
}
]
}
自动填充list对象
http://localhost:8080/test/query?id=1&orders[0].name=xxx&orders[0].cost=100&orders[1].name=yyy&orders[1].cost=99.9
输出
{
"id": "1",
"name": null,
"desc": null,
"finished": null,
"count": null,
"stringList": null,
"arrs": null,
"address": null,
"orders": [
{
"name": "xxx",
"cost": 100
},
{
"name": "yyy",
"cost": 99.9
}
],
"orderArrs": null
}
接收array
/**
* http://localhost:8080/test/direct/array?content=111,222,444
* @param content
* @return
*/
@RequestMapping(value = "/test/direct/array",method = RequestMethod.GET)
@ResponseBody
public String[] getDirectArray(String[] content){
return content;
}
/**
* http://localhost:8080/test/direct/array-obj?content=111,222
* @param content
* @return
*/
@RequestMapping(value = "/test/direct/array-obj",method = RequestMethod.GET)
@ResponseBody
public Address[] getDirectArrayObject(@RequestParam("content") Address[] content){
return content;
}
简单类型array
http://localhost:8080/test/direct/array?content=111,222,444
输出
[
"111",
"222",
"444"
]
对象array
http://localhost:8080/test/direct/array-obj?content=111,222
输出
[
{
"name": "111",
"district": null
},
{
"name": "222",
"district": null
}
]
目前还不知道怎么去填充其他字段
接收list
/**
* 需要post,requestBody
* @param orders
* @return
*/
@RequestMapping(value = "/test/list",method = RequestMethod.GET)
@ResponseBody
public List<Order> getByList(List<Order> orders){
return orders;
}
/**
* http://localhost:8080/test/direct/list?content=111,222,444
* http://localhost:8080/test/direct/list?content=[111,222,444]
* 都不行
* Failed to instantiate [java.util.List]: Specified class is an interface
* @param content
* @return
*/
@RequestMapping(value = "/test/direct/list",method = RequestMethod.GET)
@ResponseBody
public List<String> getDirectList(List<String> content){
return content;
}
/**
* http://localhost:8080/test/direct/list2?content=111,222,444
* @param content
* @return
*/
@RequestMapping(value = "/test/direct/list2",method = RequestMethod.GET)
public List<String> getDirectList2(@RequestParam("content") List<String> content){
return content;
}
/**
* http://localhost:8080/test/direct/list3?content=111,222,444
* @param content
* @return
*/
@RequestMapping(value = "/test/direct/list3",method = RequestMethod.GET)
public List<Address> getDirectList3(@RequestParam("content") List<Address> content){
return content;
}
简单类型list
http://localhost:8080/test/direct/list2?content=111,222,444
输出
[
"111",
"222",
"444"
]
需要@RequestParam("content") List<String> content 才可以
对象list
http://localhost:8080/test/direct/list3?content=111,222,444
输出
[
{
"name": "111",
"district": null
},
{
"name": "222",
"district": null
},
{
"name": "444",
"district": null
}
]
目前还不知道怎么去填充其他字段
RequestBody接收list
@RequestMapping(value = "saveUser", method = {RequestMethod.POST }})
@ResponseBody
public void saveUser(@RequestBody List<User> users) {
userService.batchSave(users);
}
@RequestBody接收的是一个Json对象的字符串，而不是一个Json对象。然而在ajax请求往往传的都是Json对象，后来发现用 JSON.stringify(data)的方式就能将对象变成字符串。同时ajax请求的时候也要指定dataType: "json",contentType:"application/json" 这样就可以轻易的将一个对象或者List传到Java端，使用@RequestBody即可绑定对象或者List.
