我試圖創(chuàng)建一個Web方法誰會得到一個Json字符串。我需要獲取該json字符串并將其解析為java對象。當我試圖做到這一點時，我得到了例外：javax.servlet.ServletException: com.google.gson.JsonSyntaxException: java.io.EOFException: End of input at line 1 column 2根本原因com.google.gson.JsonSyntaxException: java.io.EOFException: End of input at line 1 column 2根本原因 java.io.EOFException: End of input at line 1 column 2那是我的代碼：@GET@Produces("application/text")@Path("checkuser/{user}")public String checkUser(@PathParam("user") String mu) throws SQLException, ClassNotFoundException { gson = new Gson(); modelUserGet = gson.fromJson(mu, ModelUser.class); StringBuilder query = new StringBuilder(); query.append("SELECT user, password, email,"); query.append(" telephone, creation_data, last_update_data "); query.append("FROM user "); query.append("WHERE user ='"); query.append(modelUserGet.getUser()); query.append("' "); datamysql = new DataMySqlAccess(); Statement st = datamysql.getConnection().createStatement(); ResultSet rs = st.executeQuery(query.toString()); String result = ""; if(rs.next() == true){ modelUserSend = new ModelUser( rs.getString("user"), rs.getString("password"), rs.getString("email"), rs.getString("telephone"), rs.getString("creation_data"), rs.getString("last_update_data") ); if(!modelUserSend.getPassword().equals(modelUserGet.getPassword())) result = "INVALID_PASSWORD"; else result = "OK"; } else result = "INVALID_USER"; modelUserSend.setCheckUserReponse(result); return gson.toJson(modelUserSend);}
2 回答
慕容3067478
TA貢獻1773條經(jīng)驗 獲得超3個贊
@PathParam（“ user”）字符串mu
這是您要獲取的PathParameter，它是一個字符串。這就是例外的原因。它無法轉(zhuǎn)換為模型。
在您的情況下，請將其作為單獨的路徑參數(shù)變量并在方法中使用它。
編輯1
我認為，用戶名是您從參數(shù)中唯一需要的項目。因此，最好將用戶名作為Path參數(shù)獲取。其他細節(jié)，您正在從數(shù)據(jù)庫中獲取。
@GET
@Produces("application/text")
@Path("checkuser/{user}")
public String checkUser(@PathParam("user") String userName) throws SQLException, ClassNotFoundException {
StringBuilder query = new StringBuilder();
query.append("SELECT user, password, email,");
query.append(" telephone, creation_data, last_update_data ");
query.append("FROM user ");
query.append("WHERE user ='");
query.append(userName);
query.append("' ");
datamysql = new DataMySqlAccess();
Statement st = datamysql.getConnection().createStatement();
ResultSet rs = st.executeQuery(query.toString());
String result = "";
if(rs.next() == true){
modelUserSend = new ModelUser(
rs.getString("user"),
rs.getString("password"),
rs.getString("email"),
rs.getString("telephone"),
rs.getString("creation_data"),
rs.getString("last_update_data")
);
if(!modelUserSend.getPassword().equals(modelUserGet.getPassword()))
result = "INVALID_PASSWORD";
else
result = "OK";
} else
result = "INVALID_USER";
modelUserSend.setCheckUserReponse(result);
return gson.toJson(modelUserSend);
}
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