推薦(免費):ajax
最近寫ajax與後台傳輸資料的時候碰到了一個問題,我想ajax以json的方式把資料傳送個後台,後台用map的形式接收,然後也以map的形式傳回數據。可是一直碰到前台報(*)(@415 Unsupported media type) 不支援媒體類型錯誤,然後經過查閱資料終於解決了。這裡總結下關於ajax與後台傳輸資料的幾種方式,上面問題的解決方法在本文最後。
<code> var id = $("#id").val(); $.ajax({ type: "POST", url: "/IFTree/people/getPeopleById/"+id,//参数放在url中 success:function(data){ alert(data); }, error:function(xhr, textStatus, errorThrown) { } }); </code>
e03b848252eb9375d56be284e690e873ffbe95d20f3893062224282accb13e8f
@RequestMapping(value = "getPeopleById/{id}") @ResponseBody public Map14bd1badcdee783757181db757c9943f getPeopleById(@PathVariable("id") int id) { //@PathVariable("id") 如果参数名与url定义的一样注解可以不用定义("id") System.out.println(id); Map14bd1badcdee783757181db757c9943f map = new HashMap14bd1badcdee783757181db757c9943f(); return map; } }
1cd55414ff5abdfea5dd958e7e547fddbc5574f69a0cba105bc93bd3dc13c4ec
<code> var id = $("#id").val(); $.ajax({ type: "POST", url: "/IFTree/people/getPeopleById", data: {id:id}, success:function(data){ alert(data.result); }, error:function(xhr, textStatus, errorThrown) { } }); </code>
e03b848252eb9375d56be284e690e873ffbe95d20f3893062224282accb13e8f
@RequestMapping(value = "getPeopleById") @ResponseBody public Map14bd1badcdee783757181db757c9943f getPeopleById(HttpServletRequest request,HttpServletResponse response) { int id = Integer.valueOf(request.getParameter("id")); Map14bd1badcdee783757181db757c9943f map = new HashMap14bd1badcdee783757181db757c9943f(); return map; }
1cd55414ff5abdfea5dd958e7e547fddbc5574f69a0cba105bc93bd3dc13c4ec
@RequestMapping(value = "getPeopleById") @ResponseBody public Map14bd1badcdee783757181db757c9943f getPeopleById(HttpServletRequest request,HttpServletResponse response) { int id = Integer.valueOf(request.getParameter("id")); // 这里得到的都是字符串得转换成你需要的类型 Map14bd1badcdee783757181db757c9943f map = new HashMap14bd1badcdee783757181db757c9943f(); return map; }
1cd55414ff5abdfea5dd958e7e547fdd
<code> var id = $("#id").val(); $.ajax({ type: "POST",//请求类型 timeout:10000, //设置请求超时时间(毫秒) async:ture,//是否为异步请求 cache:false,//是否从浏览器缓存中加载请求信息。 url: "/IFTree/people/getPeopleById", contentType: "application/json;charset=UTF-8",//提交的数据类型 data: JSON.stringify({id:id}),//这里是把json转化为字符串形式 dataType: "json",//返回的数据类型 success:function(data){ $("#name").val(data.result.name); }, error:function(xhr, textStatus, errorThrown) { } }); }); </code>
1417fd9caae40516c8185eb949b251edffbe95d20f3893062224282accb13e8f
@RequestMapping(value = "getPeopleById", produces = "application/json") @ResponseBody public Map14bd1badcdee783757181db757c9943f getPeopleById(@RequestBody Map14bd1badcdee783757181db757c9943f body){ System.out.println(""+body.get("id")); People people = peopleService.getPeopleById(Integer.valueOf((String)body.get("id"))); Map14bd1badcdee783757181db757c9943f map = new HashMap14bd1badcdee783757181db757c9943f(); map.put("result", people); return map; }
1cd55414ff5abdfea5dd958e7e547fddbc5574f69a0cba105bc93bd3dc13c4ec
@RequestBody
此註解首先讀取request請求的正文數據,然後使用預設配置的HttpMessageConverter進行解析,把數據綁定要物件上面,然後再把物件綁定到controllor中的參數上。
@ResponseBody
該註解也是一樣的用於將Controller的方法返回的對象,通過的HttpMessageConverter轉換為指定格式後,寫入到Response對象的body資料區。
ffbe95d20f3893062224282accb13e8f
266dae442ac9dc95e3bdec99752e3b4d 584454ffd05c6f0e3c55641435afbafd 4d2d13b32b6824d433e20957bf031c9c 0efe1b6b91208fe6ccb37533ee972a52 4309a73696dbaeac0ddd115cebb6f9b7 9cfc82ad645e238cfb23844fcc566fb0 b15467429256a47420d73a292704d15c 4fd24be84f9bb50bd43e1c13351e6665 b6b7f77ea6dcfce4539ab4f516be1876 05da36058a5ae95ab9385e514bd64d98 21a4cbd21ee44ffbefb7b42e6a338a11 d0e6ed04ce081f36fe4ad23a6e2f195d 4309a73696dbaeac0ddd115cebb6f9b7 8487820b627113dd990f63dd2ef215f3application/json;charset=UTF-84b175f9a50d57c75316becd702e959dc 17e5453f22e09a7f163b2d4ce32c48b7 dde4123f2ed5a21d0bae333af89830f9 4bb0e59fd50cbfe6f6ce2215b9d9424341a073a833a1192b911b28010fe7d5f7 17e5453f22e09a7f163b2d4ce32c48b7 dde4123f2ed5a21d0bae333af89830f9 4bb0e59fd50cbfe6f6ce2215b9d94243
1cd55414ff5abdfea5dd958e7e547fdd
ByteArrayHttpMessageConverter: 負責讀取取二進位格式的資料和寫出二進位格式的資料;
StringHttpMessageConverter: 負責讀取字串格式的資料和寫出二進位格式的資料;
ResourceHttpMessageConverter :負責讀取資源檔案和寫出資源檔案資料;
FormHttpMessageConverter: 負責讀取form提交的資料
MappingJacksonHttpMessageConverter: 格式在讀取和寫入jsonpingJacksonHttpMessageConverter
: 格式的資料;SouceHttpMessageConverter
: 負責讀取與寫入xml 中javax.xml.transform.Source定義的資料;##Jb2Root#Jaxb2Root. xml 標籤格式的資料;
AtomFeedHttpMessageConverter: 負責讀取與寫入Atom格式的資料;
RssChannelHttpMessageConverter 專案裡面我用到的只有json轉換器,所以要導入關於json的套件(maven):
<code> <dependency> <groupId>org.codehaus.jackson</groupId> <artifactId>jackson-core-asl</artifactId> <version>1.9.11</version> </dependency> <dependency> <groupId>org.codehaus.jackson</groupId> <artifactId>jackson-mapper-asl</artifactId> <version>1.9.11</version> </dependency> </code>
如果有哪裡不足或錯誤的地方望提出,謝謝
_
php培訓
以上是介紹Spring中ajax與後台傳輸資料的幾種方式的詳細內容。更多資訊請關注PHP中文網其他相關文章!