解析POST查询中收到的字符串参数

I running a very simple REST web service to receive string params in post query, process them and send back a string response. In order to parse the params from string

我运行一个非常简单的REST Web服务来接收查询中的字符串参数,处理它们并发回字符串响应。为了从字符串解析params

param1=testData1&param2=testData2&

I'm using String.split() as under:

我正在使用String.split(),如下所示:

@POST
@Produces(MediaType.TEXT_PLAIN)
public String post(String str) {
  String[] parts = str.split("&");
  String part1 = parts[0]; // param1=testData1
  String part2 = parts[1]; // param2=testData2
  ......do something on these values and return String....
  return str;
}

for getting the param values I'll have to split again..... can someone please suggest a cleaner and elegant solution to get these param values..

为了获得参数值,我将不得不再次分裂.....有人可以建议一个更清洁和优雅的解决方案来获得这些参数值..

1 个解决方案

#1

Assuming its form parameters, one way that will work for either Jersey 1.x or Jersey 2.x is to inject MultivaluedMap

假设它的表单参数,一种适用于Jersey 1.x或Jersey 2.x的方法是注入多值映射

@POST
@Consumes(MediaType.APPLICATION_FORM_URLENCODED)
public String post(MultivaluedMap<String, String> form) {
    StringBuilder builder = new StringBuilder();
    for (Map.Entry<String, List<String>> params : form.entrySet()) {
        for (String key: params.getValue()) {
            builder.append("key: ").append(params.getKey()).append("; ")
                .append("value: ").append(params.getValue().get(0)).append("\n");
        }
    }
    return builder.toString();
}

If you know ahead of time the name of the form key, you could create a bean.

如果您提前知道表单键的名称,则可以创建一个bean。

public class Bean {
    @FormParam("key1")
    private String value1;
    @FormParam("key2")
    private String value2;

    // getter and setters
}

For Jersey 2.x, you would inject with @BeanParam

对于Jersey 2.x,你会注入@BeanParam

@POST
@Consumes(MediaType.APPLICATION_FORM_URLENCODED)
public Response post(@BeanParam Bean bean) {

}

For Jersey 1.x you would inject with @InjectParam

对于Jersey 1.x,你会注入@InjectParam

@POST
@Consumes(MediaType.APPLICATION_FORM_URLENCODED)
public Response post(@InjectParam Bean bean) {

}

Note that the bean injection will work for all the other @XxxParams also, not just @FormParam, for instance @QueryParam, @PathParam. You can mix and match them.

请注意,bean注入也适用于所有其他@XxxParams,而不仅仅是@FormParam,例如@QueryParam,@ PathParam。你可以混合搭配它们。

Or if you know the names ahead of time, if you don't need the bean, you can simply declare all the form params in the method signature

或者如果您提前知道名称,如果您不需要bean,则只需在方法签名中声明所有表单参数

@POST
@Consumes(MediaType.APPLICATION_FORM_URLENCODED)
public Response post(@FormParam("key1") String value1,
                     @FormParam("key2") String value2) {

}

#1