前端ajax写法:
function middleCategoryChange(url) {
var middleCategory = $("select[name='middleCategory']").val();
var json ={};
json.middleCategory = middleCategory;
var windowToken = $('input[name="windowToken"]').val();
$.ajax({
async: true,
headers: { "X-CSRF-Token": windowToken },
url : url,
type : "post", //使用post方法
contentType: "application/json", //指定为json格式,不然后台接受会报错
data : JSON.stringify(json), // 用JSON.stringify转换为json对象,不然后台接受的值不对
cache: false,
dataType: "json"
}).done(function(data, status, jqxhr) {
var minorCategoryList = data[0];
var subCategoryList = data[1];
if (minorCategoryList) {
$("select[name='minorCategory']").empty();
for(var i = 0; i < minorCategoryList.length; i++) {
$("select[name='minorCategory']").append("<option value='" + minorCategoryList[i].categoryCd + "'>" + minorCategoryList[i].categoryNm + "</option>");
}
}
if (subCategoryList) {
$("select[name='subCategory']").empty();
for(var i = 0; i < subCategoryList.length; i++) {
$("select[name='subCategory']").append("<option value='" + subCategoryList[i].categoryCd + "'>" + subCategoryList[i].categoryNm + "</option>");
}
}
}).fail(function(data, status, jqxhr) {
alert("error!");
});
}
- function middleCategoryChange(url) {
- var middleCategory = $("select[name='middleCategory']").val();
- var <a href="http://zpycloud.com/archives/tag/json/" title="查看与 json 相关的文章" target="_blank">json</a> ={};
- json.middleCategory = middleCategory;
- var windowToken = $('input[name="windowToken"]').val();
- $.ajax({
- async: true,
- headers: { "X-CSRF-Token": windowToken },
- url : url,
- type : "post", //使用post方法
- contentType: "application/json", //指定为json格式,不然后台接受会报错
- data : JSON.stringify(json), // 用JSON.stringify转换为json对象,不然后台接受的值不对
- cache: false,
- dataType: "json"
- }).done(function(data, status, jqxhr) {
- var minorCategoryList = data[0];
- var subCategoryList = data[1];
- if (minorCategoryList) {
- $("select[name='minorCategory']").empty();
- for(var i = 0; i < minorCategoryList.length; i++) {
- $("select[name='minorCategory']").append("<option value='" + minorCategoryList[i].categoryCd + "'>" + minorCategoryList[i].categoryNm + "</option>");
- }
- }
- if (subCategoryList) {
- $("select[name='subCategory']").empty();
- for(var i = 0; i < subCategoryList.length; i++) {
- $("select[name='subCategory']").append("<option value='" + subCategoryList[i].categoryCd + "'>" + subCategoryList[i].categoryNm + "</option>");
- }
- }
- }).fail(function(data, status, jqxhr) {
- alert("error!");
- });
- }
function middleCategoryChange(url) {
var middleCategory = $("select[name='middleCategory']").val();
var <a href="http://zpycloud.com/archives/tag/json/" title="查看与 json 相关的文章" target="_blank">json</a> ={};
json.middleCategory = middleCategory;
var windowToken = $('input[name="windowToken"]').val();
$.ajax({
async: true,
headers: { "X-CSRF-Token": windowToken },
url : url,
type : "post", //使用post方法
contentType: "application/json", //指定为json格式,不然后台接受会报错
data : JSON.stringify(json), // 用JSON.stringify转换为json对象,不然后台接受的值不对
cache: false,
dataType: "json"
}).done(function(data, status, jqxhr) {
var minorCategoryList = data[0];
var subCategoryList = data[1];
if (minorCategoryList) {
$("select[name='minorCategory']").empty();
for(var i = 0; i < minorCategoryList.length; i++) {
$("select[name='minorCategory']").append("<option value='" + minorCategoryList[i].categoryCd + "'>" + minorCategoryList[i].categoryNm + "</option>");
}
}
if (subCategoryList) {
$("select[name='subCategory']").empty();
for(var i = 0; i < subCategoryList.length; i++) {
$("select[name='subCategory']").append("<option value='" + subCategoryList[i].categoryCd + "'>" + subCategoryList[i].categoryNm + "</option>");
}
}
}).fail(function(data, status, jqxhr) {
alert("error!");
});
}
后台代码:
controller
@RequestMapping("minorCategory/search")
@ResponseBody
public List<List<CategoryEntity>> minorCategorySearch(
@RequestBody ProductFormEntity formEntity) throws JSONException {
// 后台接受参数时需要加上 @RequestBody注解,头部需要加上@ResponseBody注解
List<CategoryEntity> minorCategoryList
= categoryUtil.getMinorCategoryList(formEntity.middleCategory);
List<CategoryEntity> subCategoryList
= categoryUtil.getSubCategoryList(formEntity.middleCategory, null);
List<List<CategoryEntity>> list = new ArrayList<>();
list.add(minorCategoryList);
list.add(subCategoryList);
// 因为需要返回两个List,所以返回的是list的list
return list;
}
- @RequestMapping("minorCategory/search")
- @ResponseBody
- public List<List<CategoryEntity>> minorCategorySearch(
- @RequestBody ProductFormEntity formEntity) throws JSONException {
- // 后台接受参数时需要加上 @RequestBody注解,头部需要加上@ResponseBody注解
- List<CategoryEntity> minorCategoryList
- = categoryUtil.getMinorCategoryList(formEntity.middleCategory);
- List<CategoryEntity> subCategoryList
- = categoryUtil.getSubCategoryList(formEntity.middleCategory, null);
- List<List<CategoryEntity>> list = new ArrayList<>();
- list.add(minorCategoryList);
- list.add(subCategoryList);
- // 因为需要返回两个List,所以返回的是list的list
- return list;
- }
@RequestMapping("minorCategory/search")
@ResponseBody
public List<List<CategoryEntity>> minorCategorySearch(
@RequestBody ProductFormEntity formEntity) throws JSONException {
// 后台接受参数时需要加上 @RequestBody注解,头部需要加上@ResponseBody注解
List<CategoryEntity> minorCategoryList
= categoryUtil.getMinorCategoryList(formEntity.middleCategory);
List<CategoryEntity> subCategoryList
= categoryUtil.getSubCategoryList(formEntity.middleCategory, null);
List<List<CategoryEntity>> list = new ArrayList<>();
list.add(minorCategoryList);
list.add(subCategoryList);
// 因为需要返回两个List,所以返回的是list的list
return list;
}
formEntity
public String middleCategory;
public String minorCategory;
public String subCategory;
- public String middleCategory;
- public String minorCategory;
- public String subCategory;
public String middleCategory;
public String minorCategory;
public String subCategory;