无法将列表从Spring MVC转换为Ajax响应 [英] Unable to get List into ajax response from Spring MVC

问题描述

无法将列表从Spring MVC的ajax响应中获取406(不可接受)，但能够获取String，这是我的代码

Unable to get List into ajax response from Spring MVC getting 406 (Not Acceptable) but able to get String, here my code

@ResponseStatus(value = HttpStatus.OK)
@RequestMapping(value = "/getCategory", method = RequestMethod.POST, headers = "Accept=*/*", produces = "application/json")
public @ResponseBody List<Info> initCategory(@ModelAttribute(value = "getCategories") Info info) {
    List<Info> category = null;
    try {
        category = infoService.getCategory(info.getPlantName());
    } catch (NullPointerException e) {
        e.printStackTrace();
    }
    return category;
}

Ajax

    function selectCategory() {
        var plantId = $('#plantId').val();
        alert(plantId);
        $.ajax({
                    url : '/veQNL/addPro/getCategory',
                    type : 'POST',
                    data : $("#addProject").serialize(),
                    success : function(result) {
                        alert(result);
                    }
        });
}

和调度员

<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans
 http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
 http://www.springframework.org/schema/context
 http://www.springframework.org/schema/context/spring-context-4.0.xsd
 http://www.springframework.org/schema/mvc 
 http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd">
<!--registration and scanning all controller ,service ,repository annotation -->
<context:component-scan base-package="com.ve.qnl" />
<!-- jdbc resource -->

<context:property-placeholder location="classpath:resources/database.properties" />
<bean id="jspViewResolver"
    class="org.springframework.web.servlet.view.InternalResourceViewResolver">
    <property name="viewClass"
        value="org.springframework.web.servlet.view.JstlView" />
    <property name="prefix" value="/WEB-INF/views/" />
    <property name="suffix" value=".jsp" />
</bean>
<bean id="dataSource"
    class="org.springframework.jdbc.datasource.DriverManagerDataSource">
    <property name="driverClassName" value="${database.driver}" />
    <property name="url" value="${database.url}" />
    <property name="username" value="${database.user}" />
    <property name="password" value="${database.password}" />
</bean>

<bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">
    <property name="dataSource" ref="dataSource" />
</bean>
<mvc:resources mapping="/resources/**" location="/resources/"
    cache-period="31556926" />
<mvc:annotation-driven /></beans>

尝试过许多事情，例如Map，Json等，但要获得相同的帮助，将不胜感激.

Have try many things Like Map,Json etc but getting the same, any help will be appreciate.

推荐答案

将以下bean添加到您的配置中:

Add the following bean to your configuration:

<bean id="jacksonConverter" class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter" />

这篇关于无法将列表从Spring MVC转换为Ajax响应的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！