从JSON获取数据 [英] Getting data from JSON
本文介绍了从JSON获取数据的处理方法，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
我正在尝试从JSON字符串中获取值，但我很难实现这一点。
DebugLogId：1750550，RequestId：17505503，Result：
{Code：，DebugLogId：1750550，Message：}
建议：[
{排名：1，得分：60，标题：这是一个测试消息1}，
{排名：2，得分：60，标题：这是一个测试消息2}
]}
以什么方式访问建议中的数据是最简单的？我正在使用GSON模块。理想情况下，我想将它全部放在HashMap中。
感谢任何帮助和/或建议！
解决方案
希望这有帮助：
App.java：
package sg.java.play_sof_json_6596072;
import com.google.gson.Gson;
public class App {
public static void main（String [] args）{
Gson gson = new Gson（）;
String jsonString ={\DebugLogId\：\1750550\，\RequestId\：\17505503\，\Result\：{ \ Code\：\ \，\ DebugLogId\：\ 1750550\，\ Message\：\ \}，\ Suggestions\ ：[{\ Ranking\ ：\ 1\ \ Score\：\ 60\，\ Title\：\这是一个测试消息1 \}，{\排名\：\2 \，\得分\：\60 \，\标题\\ ：\这是一个测试消息2\}]};
调试obj =（Debug）gson.fromJson（jsonString，Debug.class）;
System.out.println（obj.getSuggestionList（）。get（1）.getTitle（））;
}
}
Debug.java：
package sg.java.play_sof_json_6596072;
import java.util.List;
import com.google.gson.annotations.SerializedName;
public class Debug {
@SerializedName（DebugLogId）
private String debugLogId;
@SerializedName（RequestId）
private String requestId;
@SerializedName（Result）
private结果结果;
@SerializedName（Suggestions）
private List< Suggestion> suggestionList;
/ **
* @返回debugLogId
* /
public final String getDebugLogId（）{
return this.debugLogId;
}
/ **
* @param debugLogId设置
* /
public final void setDebugLogId（String debugLogId）{
this.debugLogId = debugLogId;
}
/ **
* @返回requestId
* /
public final String getRequestId（）{
return this.requestId ;
}
/ **
* @param requestId requestId设置
* /
public final void setRequestId（String requestId）{
this.requestId = requestId;
}
/ **
* @返回结果
* /
public final Result getResult（）{
return this.result ;
}
/ **
* @param将结果设置为
* /
public final void setResult（Result result）{
this.result = result;
}
/ **
* @返回建议列表
* /
public final List< Suggestion> getSuggestionList（）{
return this.suggestionList;
}
/ **
* @param suggestionList建议列表设置
* /
public final void setSuggestionList（List< Suggestion> suggestionList）{
this.suggestionList = suggestionList;
}
}
Result.java：
package sg.java.play_sof_json_6596072;
import com.google.gson.annotations.SerializedName;
public class Result {
@SerializedName（Code）
private String code;
@SerializedName（DebugLogId）
private String debugLogId;
@SerializedName（Message）
private String messahe;
/ **
* @返回代码
* /
public final String getCode（）{
return this.code;
}
/ **
* @param代码设置
* /
public final void setCode（String code）{
this.code = code;
}
/ **
* @返回debugLogId
* /
public final String getDebugLogId（）{
return this.debugLogId ;
}
/ **
* @param debugLogId设置
* /
public final void setDebugLogId（String debugLogId）{
this.debugLogId = debugLogId;
}
/ **
* @返回消息
* /
public final String getMessahe（）{
return this.messahe ;
}
/ **
* @param messahe设置
* /
public final void setMessahe（String messahe）{
this.messahe = messahe;
}
}
Suggestion.java：
package sg.java.play_sof_json_6596072;
import com.google.gson.annotations.SerializedName;
public class Suggestion {
@SerializedName（Ranking）
private String ranking;
@SerializedName（Score）
private String score;
@SerializedName（Title）
private String title;
/ **
* @返回排名
* /
public final String getRanking（）{
return this.ranking;
}
/ **
* @param排名设置
* /
public final void setRanking（String ranking）{
this.ranking = ranking;
}
/ **
* @返回分数
* /
public final String getScore（）{
return this.score ;
}
/ **
* @param得分设定
* /
public final void setScore（String score）{
this.score = score;
}
/ **
* @返回标题
* /
public final String getTitle（）{
return this.title ;
}
/ **
* @param标题设置标题
* /
public final void setTitle（String title）{
this.title = title;
}
}
I'm trying to get the values out of this JSON string but I'm having a hard time achieving this.
{"DebugLogId":"1750550","RequestId":"17505503","Result":
{"Code":"","DebugLogId":"1750550","Message":""},
"Suggestions":[
{"Ranking":"1","Score":"60","Title":"This is a test message 1"},
{"Ranking":"2","Score":"60","Title":"This is a test message 2"}
]}
What way would be easiest to access the data in 'Suggestions'? I'm using the GSON module. Ideally I would like to put it all in a HashMap.
Thanks for any help and/or suggestions!
Thanks for any help!
解决方案
Hope this helps:
App.java:
package sg.java.play_sof_json_6596072;
import com.google.gson.Gson;
public class App {
public static void main(String[] args) {
Gson gson = new Gson();
String jsonString = "{\"DebugLogId\":\"1750550\",\"RequestId\":\"17505503\",\"Result\":{\"Code\":\"\",\"DebugLogId\":\"1750550\",\"Message\":\"\"},\"Suggestions\":[{\"Ranking\":\"1\",\"Score\":\"60\",\"Title\":\"This is a test message 1\"},{\"Ranking\":\"2\",\"Score\":\"60\",\"Title\":\"This is a test message 2\"}]}";
Debug obj = (Debug) gson.fromJson(jsonString, Debug.class);
System.out.println(obj.getSuggestionList().get(1).getTitle());
}
}
Debug.java:
package sg.java.play_sof_json_6596072;
import java.util.List;
import com.google.gson.annotations.SerializedName;
public class Debug {
@SerializedName("DebugLogId")
private String debugLogId;
@SerializedName("RequestId")
private String requestId;
@SerializedName("Result")
private Result result;
@SerializedName("Suggestions")
private List<Suggestion> suggestionList;
/**
* @return the debugLogId
*/
public final String getDebugLogId() {
return this.debugLogId;
}
/**
* @param debugLogId the debugLogId to set
*/
public final void setDebugLogId(String debugLogId) {
this.debugLogId = debugLogId;
}
/**
* @return the requestId
*/
public final String getRequestId() {
return this.requestId;
}
/**
* @param requestId the requestId to set
*/
public final void setRequestId(String requestId) {
this.requestId = requestId;
}
/**
* @return the result
*/
public final Result getResult() {
return this.result;
}
/**
* @param result the result to set
*/
public final void setResult(Result result) {
this.result = result;
}
/**
* @return the suggestionList
*/
public final List<Suggestion> getSuggestionList() {
return this.suggestionList;
}
/**
* @param suggestionList the suggestionList to set
*/
public final void setSuggestionList(List<Suggestion> suggestionList) {
this.suggestionList = suggestionList;
}
}
Result.java:
package sg.java.play_sof_json_6596072;
import com.google.gson.annotations.SerializedName;
public class Result {
@SerializedName("Code")
private String code;
@SerializedName("DebugLogId")
private String debugLogId;
@SerializedName("Message")
private String messahe;
/**
* @return the code
*/
public final String getCode() {
return this.code;
}
/**
* @param code the code to set
*/
public final void setCode(String code) {
this.code = code;
}
/**
* @return the debugLogId
*/
public final String getDebugLogId() {
return this.debugLogId;
}
/**
* @param debugLogId the debugLogId to set
*/
public final void setDebugLogId(String debugLogId) {
this.debugLogId = debugLogId;
}
/**
* @return the messahe
*/
public final String getMessahe() {
return this.messahe;
}
/**
* @param messahe the messahe to set
*/
public final void setMessahe(String messahe) {
this.messahe = messahe;
}
}
Suggestion.java:
package sg.java.play_sof_json_6596072;
import com.google.gson.annotations.SerializedName;
public class Suggestion {
@SerializedName("Ranking")
private String ranking;
@SerializedName("Score")
private String score;
@SerializedName("Title")
private String title;
/**
* @return the ranking
*/
public final String getRanking() {
return this.ranking;
}
/**
* @param ranking the ranking to set
*/
public final void setRanking(String ranking) {
this.ranking = ranking;
}
/**
* @return the score
*/
public final String getScore() {
return this.score;
}
/**
* @param score the score to set
*/
public final void setScore(String score) {
this.score = score;
}
/**
* @return the title
*/
public final String getTitle() {
return this.title;
}
/**
* @param title the title to set
*/
public final void setTitle(String title) {
this.title = title;
}
}
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