Question

@RequestMapping(value = "/createItem", method = RequestMethod.POST)
    @Override
    public void createItem(@RequestParam(value="userId") String userId, @RequestParam(value="title") String title, @RequestParam(value="subtitle") String subtitle, @RequestParam(value="description") String description, @RequestParam(value="category") String category, @RequestParam(value="datapack") String datapack) {
        this.itemDAO.createItem(userId, title, subtitle, description, category, datapack);
}

我正在使用Spring创建RESTful应用程序。上面的方法工作正常，但是当数据包长度超过一定长度时，将导致错误。错误说......

解析HTTP请求标头时出错注意：进一步出现HTTP 头部解析错误将记录在DEBUG级别。

我需要将datapack作为参数传递，datapack本身将是一个json文件，我将其转换为字符串。

datapack文件可能非常复杂和庞大。我该如何解决这个问题？

以下是请求的示例：

http://localhost:8090/createItem?userId=test&title=test&subtitle=test&description=test&category=test&datapack=
  {
    "CLASS": "com.mincom.ellipse.edoi.ejb.menu_item.MENU_ITEMRec",
    "INSTANCE": {
      "m_creationDate": "20150824",
      "m_creationTime": "001616",
      "m_creationUser": "SR4187",
      "m_lastModDate": "20150824",
      "m_lastModTime": "001616",
      "m_lastModUser": "SR4187",
      "m_menuType": "",
      "m_invokationString": "",
      "primaryKey": {
        "m_uuid": "3b4d95fe3dd3432fb00cde0cc25f903f"
      }
    }
  },
  {
    "CLASS": "com.mincom.ellipse.edoi.ejb.i18n_descriptions.I18N_DESCRIPTIONSRec",
    "INSTANCE": {
      "m_creationDate": "20150824",
      "m_creationTime": "001616",
      "m_creationUser": "SR4187",
      "m_lastModDate": "20150824",
      "m_lastModTime": "001616",
      "m_lastModUser": "SR4187",
      "m_description": "CUSTOM_MENU",
      "primaryKey": {
        "m_locale": "en",
        "m_uuid": "3b4d95fe3dd3432fb00cde0cc25f903f"
      }
    }
  },
  {
    "CLASS": "com.mincom.ellipse.edoi.ejb.top_level_menus.TOP_LEVEL_MENUSRec",
    "INSTANCE": {
      "m_creationDate": "20150824",
      "m_creationUser": "SR4187",
      "m_lastModDate": "20150824",
      "m_lastModTime": "001620",
      "m_creationTime": "001620",
      "m_lastModUser": "SR4187",
      "m_uuid": "3b4d95fe3dd3432fb00cde0cc25f903f",
      "primaryKey": {
        "m_name": "SX"
      }
    }
  }

上面的示例有效，但如果我使用较长的JSON文件进行测试，则无效。

Answer 1

创建一个控制器方法，该方法将接收由$ http服务使用XHR（AJAX）发布的JSON数据

@RequestMapping(value = "/savecompany_json", method = RequestMethod.POST)   
public  @ResponseBody String saveCompany_JSON( @RequestBody Company company )   {       
    //
    // Code processing the input parameters
    //  
    return "JSON: The company name: " + company.getName() + ", Employees count: " + company.getEmployees() + ", Headoffice: " + company.getHeadoffice();
}

创建一个映射到JSON对象的POJO

public class Company {

    private String name;
    private long employees;
    private String headoffice;
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public Long getEmployees() {
        return employees;
    }
    public void setEmployees(Long employees) {
        this.employees = employees;
    }
    public String getHeadoffice() {
        return headoffice;
    }
    public void setHeadoffice(String headoffice) {
        this.headoffice = headoffice;
    }
}

Source

Answer 2

如果请求非常大（例如发送文件时），您可能希望更改http标头中的内容类型。例如（虽然根据您实际发送的内容可能会有所不同）：

multipart.maxFileSize=3MB
multipart.maxRequestSize=3180KB

然后，如果请求太大而服务器无法接受它，则可能需要扩展请求大小限制。如果您使用的是spring boot，则可以转到application.properties文件（应位于src / main / resources下，但如果它尚不存在，请手动创建）并添加以下属性：

      A              B                 K            M
1   name      current level      Max Level   Next level cost
6   Soldier        2                  4              X

Answer 3

您无论如何都在使用POST请求，因此只需在内容中发送内容类型为application / x-www-form-urlencoded的参数，就像普通表单提交而不是URL一样。

Spring参数太长了

3 个答案: