Spring:在IE中,对@ResponseBody param编码的Ajax调用失败

Question

我正在使用Spring并尝试在我的控制器中对@ResponseBody进行ajax调用.

UPDATE

好的,我把我告诉的更改添加到了我的ajax设置中.我的参数"jtSearchParam"在IE中仍然存在相同的编码问题.+我收到另一个错误,406,响应Header的内容类型错误.

这是我的新代码

控制器:

@RequestMapping(method = RequestMethod.POST, consumes="application/json; charset=utf-8", produces="application/json; charset=utf-8")
    public @ResponseBody JSONObject getUsers(@RequestParam int jtStartIndex, @RequestParam int jtPageSize,
            @RequestParam String jtSorting, @RequestParam String jtSearchParam,
            HttpServletRequest request, HttpServletResponse response) throws JSONException{

        Gson gson = new GsonBuilder()
                .setExclusionStrategies(new UserExclusionStrategy())
                .create();

        List<User> users = userService.findUsers(jtStartIndex ,jtPageSize, jtSorting, jtSearchParam);
        Type userListType = new TypeToken<List<User>>() {}.getType();

        String usersJsonString = gson.toJson(users, userListType);
        int totalRecordCount = userDao.getAmountOfRows(jtSearchParam);

        usersJsonString = "{\"Message\":null,\"Result\":\"OK\",\"Records\":" + usersJsonString + ",\"TotalRecordCount\":" + totalRecordCount + "}";

        JSONObject usersJsonObject = new JSONObject(usersJsonString);

        return usersJsonObject;
    }

所以当你看到我设置了内容类型,produces但这没有帮助.如果我调试响应头它看起来像这样:(这导致406不能从浏览器接受)

我的新ajax设置:

...
headers: { 
                 Accept : "application/json; charset=utf-8",
                "Content-Type": "application/json; charset=utf-8"
            },
            contentType: "application/json; charset=utf-8",
            mimeType:"application/json; charset=UTF-8",
            cache:false,
            type: 'POST',
            dataType: 'json'
...

我的参数在IE中看起来仍然一样!

Answer 1

好的,json内容类型的问题可以像这样解决:

使用ResponseEntity,您可以更改响应头的内容类型,这样ajax可以正确解释json对象,并且您不会得到406 Http错误.

@RequestMapping(method = RequestMethod.POST)
public ResponseEntity<String> getUsers(@RequestParam int jtStartIndex, @RequestParam int jtPageSize,
        @RequestParam String jtSorting, @RequestParam String jtSearchParam,
        HttpServletRequest request, HttpServletResponse response) throws JSONException{

    HttpHeaders responseHeaders = new HttpHeaders();
    responseHeaders.add("Content-Type", "application/json; charset=utf-8");

    Gson gson = new GsonBuilder()
            .setExclusionStrategies(new UserExclusionStrategy())
            .create();

    List<User> users = userService.findUsers(jtStartIndex ,jtPageSize, jtSorting, jtSearchParam);
    Type userListType = new TypeToken<List<User>>() {}.getType();

    String usersJsonString = gson.toJson(users, userListType);
    int totalRecordCount = userDao.getAmountOfRows(jtSearchParam);

    usersJsonString = "{\"Message\":null,\"Result\":\"OK\",\"Records\":" + usersJsonString + ",\"TotalRecordCount\":" + totalRecordCount + "}";

    return new ResponseEntity<String>(usersJsonString, responseHeaders, HttpStatus.OK);
}

编码问题可以像这样解决:

IE不会编码你的"ü,ä等" 正确地说,它只是将它添加到你的URL中:"jtSearchParam =wü"但它实际上应该是这样的:"jtSearchParam = w%C3%BC"(如果它不是你会得到编码错误您使用IE时的服务器端)

因此,无论您在URL中添加某些值,请确保encodeURI在将该值实际添加到URL之前对该值使用JavaScript方法示例:

encodeURI(jtSearchParam)