Spring正在将httpmessagenotizableexception赋予ajax帖子 [英] Spring is giving httpmessagenotreadableexception to ajax post
本文介绍了Spring正在将httpmessagenotizableexception赋予ajax帖子的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我是Spring的新手.因此，任何建议将不胜感激.我正在尝试使用ajax POST将三个数组发送到spring控制器.当我单独发送阵列时，它运行良好.但是每当我尝试使用POJO一起发送三个数组时，它就会给我HttpMessageNotReadableException.下面是我的代码. 我的POJO:
I am new to Spring. So any advice would be appreciated. I am trying to send three arrays to spring controller using ajax POST. When I am sending the arrays individually it is working perfectly. But whenever I am trying to send three arrays together using a POJO, it is giving me HttpMessageNotReadableException. Below is my code. My POJO:
package scheduler.dao;
import org.springframework.stereotype.Component;
@Component
public class TimeData2 {
private String[] a1;
private String[] a2;
private String[] a3;
public TimeData2(){
}
public String[] getA1() {
return a1;
}
public void setA1(String[] a1) {
this.a1 = a1;
}
public String[] getA2() {
return a2;
}
public void setA2(String[] a2) {
this.a2 = a2;
}
public String[] getA3() {
return a3;
}
public void setA3(String[] a3) {
this.a3 = a3;
}
}
我的ajax调用是:
myData = {
"a1": JSON.stringify(first),
"a2": JSON.stringify(second),
"a3": JSON.stringify(third)
} ;
$.ajax({
type : "POST",
contentType : "application/json; charset=utf-8",
url : "${pageContext.request.contextPath}/timeEntry?id=1",
data : myData,
dataType: "json",
success : function(response) {
console.log(response);
},
error : function(e) {
console.log(myData);
//console.log(jQuery.isPlainObject(myData));
}
});
我的控制器是:
@RequestMapping(value="/timeEntry", method=RequestMethod.POST, headers="Accept=application/json")
@ResponseBody
public String getTimeData(@RequestParam(value = "id") String id,
@RequestBody TimeData2 myData){
System.out.println("Enter time");
//System.out.println(myData.getA1());
//test String
String str = "{\"a\":1, \"b\":\"foo\"}";
return str;
}
scheduler-servlet.xml:
scheduler-servlet.xml:
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.2.xsd
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.2.xsd">
<context:component-scan base-package="scheduler.controllers"></context:component-scan>
<mvc:annotation-driven></mvc:annotation-driven>
<bean id="jspViewResolver"
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/jsps/"></property>
<property name="suffix" value=".jsp"></property>
</bean>
<bean id="jacksonMessageConverter"
class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">
</bean>
<bean
class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter">
<property name="messageConverters">
<list>
<ref bean="jacksonMessageConverter" />
</list>
</property>
</bean>
<mvc:resources location="/staticResources/"
mapping="/resources/**">
</mvc:resources>
</beans>
这是来自控制台的日志:
This is the log from the console:
org.springframework.web.servlet.mvc.support.DefaultHandlerExceptionResolver handleHttpMessageNotReadable
WARNING: Failed to read HTTP message: org.springframework.http.converter.HttpMessageNotReadableException: Could not read document: Unexpected character ('a' (code 97)): expected a valid value (number, String, array, object, 'true', 'false' or 'null')
at [Source: java.io.PushbackInputStream@26ee3322; line: 1, column: 2]; nested exception is com.fasterxml.jackson.core.JsonParseException: Unexpected character ('a' (code 97)): expected a valid value (number, String, array, object, 'true', 'false' or 'null')
at [Source: java.io.PushbackInputStream@26ee3322; line: 1, column: 2]
Jan 19, 2016 4:36:58 PM org.springframework.web.servlet.mvc.support.DefaultHandlerExceptionResolver logException
WARNING: Handler execution resulted in exception: Could not read document: Unexpected character ('a' (code 97)): expected a valid value (number, String, array, object, 'true', 'false' or 'null')
at [Source: java.io.PushbackInputStream@26ee3322; line: 1, column: 2]; nested exception is com.fasterxml.jackson.core.JsonParseException: Unexpected character ('a' (code 97)): expected a valid value (number, String, array, object, 'true', 'false' or 'null')
at [Source: java.io.PushbackInputStream@26ee3322; line: 1, column: 2]
有人可以帮忙吗?
推荐答案
我通过使TimeData2类实现Serializable接口解决了该问题.我也通过以下方式修改了ajax请求:
I solved the problem by making the TimeData2 class implements Serializable interface. Also I modified the ajax request by:
myData = {"a1": first, "a2": second, "a3": third};
$.ajax({
type : "POST",
contentType : "application/json; charset=utf-8",
url : "${pageContext.request.contextPath}/timeEntry?id=1",
data : JSON.stringify(myData),
dataType: "json",
cache: false,
processData:false,
success : function(response) {
console.log(response);
},
error : function(e) {
console.log(myData);
//console.log(jQuery.isPlainObject(myData));
}
});
如果有人能解释为什么此ajax请求起作用而另一个请求却没有起作用，我将不胜感激.
I would really appreciate if somebody can explain why this ajax request worked whereas the other one did not.
这篇关于Spring正在将httpmessagenotizableexception赋予ajax帖子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！
查看全文
