springMVC專案中,後臺Java方法使用註解獲取引數，ajax請求時分兩種情況  {
    1：後臺使用@requestParam  
    2：後臺使用@requestBody時
}

1：後臺使用@RequestBody時 需要注意的是： 
    1》：ajax中引數需要將json物件轉成json格式的字串
    2》：contentType需要設定成 application/json;

    function testAjax() {
        var url = "/agentmobileApp/test/testRequestBody";
        var reqPara = JSON.stringify({'did': '55', 'name': 'jack', 'age': 15});
        $.ajax({
            async: false,
            url: url,
            type: 'POST',
            timeout: '30000',
            data: reqPara,
            contentType: 'application/json;charset=utf-8',
            dataType: 'json',
            success: function (rep) {
                alert(rep.result + " ;" + rep.message + " ;" + rep.data.resp.name);
            },
            error: function (rep) {
                alert("請檢查網路是否連線" + rep);
            }
        });
    }


 

java端程式碼：
    @RequestMapping("/testRequestBody")
    //@RequestMapping(value = "/testRequestBody",method = {RequestMethod.POST})
    @ResponseBody
    public ResultJson testResponseBody(@RequestBody BodyVO bodyVO) {
        ResultJson resultJson = new ResultJson();
        TestVO testVO = new TestVO();

        String did = bodyVO.getDid();
        String name = bodyVO.getName();
        int age = bodyVO.getAge();
        logger.info("獲取前端的引數did :" + did + " name: " + name + "  age: " + age);
        // 簡單組裝引數
        testVO.setAge(20);
        testVO.setName(did);
        testVO.setAddress(did + "66666");

        resultJson.setResult("0000");
        resultJson.setMessage("成功了啊");
        resultJson.getData().put("resp", testVO);
        return resultJson;
    }

 

2：後臺使用@requestParam時
        需要注意的是：
        1》：引數為json物件
        2》：contentType 選項需要註釋掉

function testAjax1() {
    var url = "/agentmobileApp/test1/testResponseBody";
    var reqPara = {'did': '555', 'name': 'jack', 'age': 15};
    $.ajax({
        async: false, 
        url: url, 
        type: 'POST', 
        timeout: '30000', 
        data: reqPara,
        //contentType: 'application/json;charset=utf-8', 
        dataType: 'json', 
        success: function (rep) {
            alert(rep.result + " ;" + rep.message + " ;" + rep.data.resp.name);
        }, error: function (rep) {
            alert("請檢查網路是否連線" + rep);
        }
    });
}
 

JAVA端：
@RequestMapping("/testResponseBody")
@ResponseBody
public ResultJson testResponseBody(@RequestParam String did, @RequestParam String name, @RequestParam int age) {
    ResultJson resultJson = new ResultJson();
    TestVO testVO = new TestVO();

    testVO.setAge(20);
    testVO.setName(did);
    testVO.setAddress(did + "66666");
    resultJson.setResult("0000");
    resultJson.setMessage("成功了");
    resultJson.getData().put("resp", testVO);
    return resultJson;
}